Home / Scholars / R' David HaLevi Segal R' David HaLevi Segal Early Acharonim · ashkenazi · 1586–1667 CE (5346–5427)
879 opinions353 topics
R' David HaLevi Segal (1586-1667) was a prominent Ashkenazi halakhic authority of the early Acharonic period, known for his monumental work Turei Zahav (Taz), a comprehensive commentary on the Shulchan Aruch. He served as a rabbi in multiple communities including Ostrog and Lvov, and his glosses became one of the most influential supplements to the Shulchan Aruch in Ashkenazi tradition. His work systematically addressed difficulties in the Mechaber's rulings and provided nuanced legal analysis that shaped subsequent halakhic development.
Works & Contributions (8) Aruch HaShulchan Authored Turei Zahav (Taz), a comprehensive gloss on the Shulchan Aruch Commentary on Berachot, Mi Shemeito chapter Sefer HaAgudah / Hagahot Ashri + 4 more Origin Slovakia Czechia Poland (Ostrog, Lvov)
1586–1667 CE (5346–5427)
Historical Context 1000 1200 1400 1600 1800 2000 1586-1667
Decisional Profile Opinions recorded by category
Topic Coverage Each square represents a topic. Darker squares indicate more opinions recorded in that topic.
Rulings (879) All (879) Activities After Shabba… (1) After Wine and Fruits (3) After-Blessings on Mezo… (1) Agriculture on Shabbat (5) Aliyah Priority and Honor (2) Alleyway Entrance Shapes (4) Animals on Shabbat (7) Anointing on Shabbat (5) Answering Amen During P… (2) Asher Yatzar After Bodi… (2) Ashrei and U'Va L'Tzion (2) Assisting Childbirth on… (1) Bandaging and Wound Car… (2) Baruch She'amar and Its… (1) Bathing Before Shabbat (2) Bathing and Immersion B… (4) Bathing and Washing on … (3) Bathroom Conduct and As… (1) Birchot Kriat Shema Det… (2) Birkat HaGomel (2) Birkat HaMazon Over Wine (3) Birkat HaMazon Text (2) Birkat HaMazon — Furthe… (2) Birkat Kohanim Outside … (3) Birkat Kohanim — Detail… (3) Blessing on Fragrance (1) Blessing on Seasonal Fr… (3) Blessings After Shema (2) Blessings Before Shema (1) Blessings Over Spice In… (2) Blessings for Bodily Ne… (3) Blessings on Bread-Like… (3) Blessings on Drinks (6) Blessings on Fruits (10) Blessings on Haftarah (1) Blessings on Multi-Ingr… (3) Blessings on Natural Wo… (1) Blessings on News (1) Blessings on Processed … (4) Blessings on Special Si… (2) Blessings on Torah Study (2) Blessings on Vegetables (6) Bowing During Prayer (2) Bread Cooked or Fried (2) Bread Prepared by Non-J… (2) Building Structures on … (1) Building and Demolishing (3) Building the Sukkah (1) Burning Chametz (4) Business Activities Bef… (4) Buying and Selling on C… (1) Candle Lighting (4) Candle Lighting and Tos… (2) Chametz After Pesach (3) Chametz Mixtures (8) Changing Location Durin… (3) Childbirth on Shabbat (5) Circumcision Blessing a… (2) Circumcision Instrument… (1) Circumcision Timing and… (1) Circumcision on Shabbat (2) City Limits for Shabbat… (1) Clothing on Shabbat (1) Community Torah Scroll … (1) Concentration During Sh… (2) Concluding Repetition a… (2) Conditions for Selling … (4) Conduct While Wearing T… (4) Converting Tefillin and… (1) Cooking on Shabbat (6) Cooking on Yom Tov (1) Courtyards and Shared S… (1) Covering the Head and C… (4) Cross-Beam Construction… (1) Davening While Traveling (2) Defective Torah Scrolls… (2) Delayed Circumcision an… (2) Distance Measurements f… (5) Doubtful Blessings (2) Drinking During a Meal (3) Drunkenness and Prayer (1) Dyeing on Shabbat (1) Eating Before Shabbat (3) Ein Keloheinu and Kaddi… (1) Emergency Beyond Shabba… (1) Emet V'Yatziv After Shema (2) Erev Pesach Matzah and … (1) Erev Shabbat Candle Lig… (1) Erev Yom Kippur (4) Erev Yom Kippur Meal an… (1) Errors in Shabbat Amidah (1) Errors in Shemoneh Esrei (1) Errors in Torah Reading (3) Eruv Chatzeirot Contrib… (1) Eruv Materials and Coll… (2) Eruv Placement Location (1) Eruv Requirements for C… (3) Eruv Tavshilin Procedure (2) Eruv Using a Dwelling (4) Eruv and Carrying (8) Eruv with Non-Jews in C… (1) Extinguishing Fire on Y… (1) Extinguishing a Fire on… (3) Eye Pain and Minor Ailm… (1) Fast Day Customs and Co… (2) Fast Day Prayers (1) Feeding Animals on Shab… (5) Finding Chametz on Pesach (5) Flour and Matzah (6) Forgot Eruv — Bitul Res… (1) Foul Odors During Prayer (1) Gardens and Open Spaces… (3) General Rules of Brachot (3) Grinding Spices on Yom … (3) Grinding and Cutting Food (4) Guarding Matzah from Le… (1) HaNerot Halalu (1) Haircuts on Chol HaMoed (1) Hallel at the Seder (1) Hallel on Rosh Chodesh (2) Handling Corpses on Sha… (1) Handling Stones and Raw… (1) Harvesting on Shabbat (1) Hatmanah — Insulating L… (2) Havdalah (7) Havdalah on Motzei Yom … (2) Havdalah — Time and Con… (4) Holiday and Fast Additi… (2) Honoring and Enjoying S… (1) Hoshana Rabbah (1) How Many Candles (1) How to Put On Tefillin (3) How to Read Megillah (1) Individual Additions to… (2) Insertions in Birkat Ha… (1) Instructing a Non-Jew (… (6) Insulating Food (Hatman… (4) Insulating with Heat-Ge… (2) Intent During Shema (1) Interruptions During Sh… (3) Interruptions in Second… (1) Items Exempt from Bless… (1) Items That Become Muktzeh (5) Kaddish (2) Kaddish Laws and Respon… (2) Karpas and Salt Water (1) Kashering Vessels for P… (8) Kavvanah in Prayer (4) Kedushah (2) Kiddush Before the Meal (3) Kiddush Order on Second… (1) Kiddush Wine Disqualifi… (1) Kiddush on Beverages Ot… (3) Kiddush on Friday Night (12) Kiddush — Wine Selection (2) Killing Insects on Shab… (8) Kneading on Shabbat (5) Kneading on Yom Tov (2) Korech — Sandwich (2) Laundering on Shabbat (4) Laws of Mezuzah (2) Laws of Shavuot (2) Laws of Shofar Blowing (6) Laws of Tzitzit (1) Laws of the Seder Night (8) Leather Shoes on Yom Ki… (1) Leaving Food on the Fir… (6) Leaving the Table Durin… (1) Lechem Mishneh — Two Lo… (2) Lechi and Korah for All… (1) Lids and Covers on Shab… (1) Lifting the Torah (Hagb… (3) Maariv (4) Maftir Aliyah Laws (5) Marital Relations (2) Maror (9) Mashiv HaRuach — Wind a… (6) Materials for Tzitzit (2) Matzah Regulations (9) Matzah Thickness and Sh… (1) Mayim Acharonim — Final… (1) Measuring Shabbat Bound… (3) Medical Remedies on Sha… (1) Medical Treatment on Sh… (11) Medicine and Non-Food C… (1) Megillah Scroll — Writing (1) Melaveh Malkah Meal (3) Minchah (2) Minimum Length for Vali… (2) Minimum Requirements fo… (2) Modim and Responsive Pr… (2) Morning Blessings (2) Motzei Shabbat Activities (2) Mourning on Chol HaMoed (1) Moving Muktzeh for Its … (2) Muktzeh (5) Muktzeh Categories and … (1) Multiple Openings in an… (1) Non-Jew Performing Work… (3) Non-Jew's Work for a Je… (5) Non-Jew's Work on Yom Tov (2) Not Passing Before Some… (4) Nullification of Chametz (5) Omer Mourning Practices (1) One Who Cannot Concentr… (2) Open Alleyway Configura… (2) Order of Foods (1) Order of Multiple Bless… (2) Order of Shofar Blasts (1) Order of the Seder (11) Passing Objects Between… (1) Pausing and Timing in S… (1) Personal Fast Days (1) Personal Grooming for S… (1) Pesukei D'Zimra (2) Placement and Number of… (2) Post-Circumcision Care … (2) Posture During Shema (1) Prayer Near Bodily Odors (2) Prayer Near Covered Waste (1) Prayer Near Flowing Wat… (1) Prayer Near Gentile Wor… (2) Prayer Near Urine and F… (1) Praying Near Waste (1) Praying with Proper Att… (1) Preparing for Prayer (1) Preparing for Shabbat (2) Priestly Blessing (4) Proper Pronunciation of… (1) Purchasing Tzitzit from… (3) Rain Request (V'Ten Tal… (1) Reading by Candlelight (6) Reading by Candlelight … (4) Reciting Shema While Im… (3) Reciting Shema in Impur… (3) Reclining at the Seder (1) Removing Tefillin and S… (1) Renouncing Domain Right… (2) Renting Rights from a N… (2) Repetition of Amidah (5) Reshut HaRabbim — Publi… (1) Responding Amen During … (1) Resting Place Determine… (2) Returning Food to Fire … (2) Rooftops and Enclosures… (1) Rosh Chodesh (1) Rosh Chodesh Prayers (2) Rosh Chodesh Tevet on H… (2) Rosh Hashanah Customs —… (3) Salt and Table Customs (2) Salting and Pickling on… (6) Searching for Chametz (6) Selling Chametz to a No… (3) Selling Synagogue Prope… (1) Separating and Selectin… (1) Seudah Shlishit — Third… (1) Shabbat Amidah — Additi… (3) Shabbat Candle Materials (2) Shabbat Shemoneh Esrei (2) Shabbat Travelers and E… (1) Shaliach Tzibbur — Pray… (1) Shehecheyanu (1) Shema at Night (1) Shema at Night and Its … (1) Shema with Uncovered Hair (3) Shemini Atzeret / Simch… (2) Ships and Boats on Shab… (1) Shitufei Mevo'ot — Alle… (3) Shofar Sound Requirements (1) Shortened Prayer While … (1) Shushan Purim (2) Side Beam Placement Rules (2) Sifting Flour on Yom Tov (1) Sifting and Straining (3) Slaughtering on Yom Tov (1) Squeezing and Juicing (9) Starch and Adhesives on… (1) Sukkah Blessing and Fir… (1) Sukkah Height Requireme… (2) Sweating and Bathing Re… (1) Swimming and Water Acti… (1) Synagogue Property Use … (3) Table Conduct (7) Tachanun — Omission and… (1) Talking During a Meal (1) Tanning and Smoothing o… (2) Tasting Without Eating (3) Tearing and Cutting on … (1) Tefillin Scribe Qualifi… (2) Tefillin Storage and Ma… (3) Tefillin of Rabbeinu Tam (1) Tefillin on Chol HaMoed (1) The Four Species — Lulav (5) Things That Invalidate … (4) Times for Maariv (2) Times for Shacharit (4) Timing of Morning Shema (4) Tisha B'Av Eve (1) Tisha B'Av — Additional… (1) Torah Reading on Hanukkah (1) Torah Reading on Yom Tov (1) Torah Scroll Sanctity a… (1) Torah Study Obligations (4) Town Boundaries for Eru… (1) Trade on Chol HaMoed (2) Transferring and Repair… (3) Trapping on Shabbat (5) Tying and Untying on Sh… (2) Uncertain Blessings (3) Using Vessels on Shabbat (9) Valid Cross-Beam Materi… (2) Vows and Oaths (5) Walking Beyond the Shab… (1) Walking and Exercising … (2) Washing Hands Upon Waking (4) Washing Vessels and Wat… (3) Water Quantity for Wash… (2) Wearing Tefillin with H… (1) Weekday Prayer Variations (3) When Eruv Members Viola… (3) When Shabbat Begins (1) When to Don Tallit (3) When to Put On Tefillin (3) When to Read Megillah (1) When to Remove Tefillin (2) When to Wear and Bless … (2) Where to Place Hanukkah… (1) Who Counts for Zimmun (1) Who Desecrates Shabbat … (3) Who Is Exempt from Fast… (1) Who Is Obligated in Sho… (1) Who Is Obligated in Tzi… (1) Who Lights Hanukkah Can… (1) Who May Attach Tzitzit (1) Who Must Wash Hands for… (4) Who Recites HaGomel (4) Windows and Doorways Be… (2) Windows and Rooftops in… (2) Women and Kiddush (2) Work Forbidden After Ca… (1) Work Restrictions on Er… (3) Work and Study on Tisha… (1) Writing Tefillin (2) Writing on Chol HaMoed (1) Writing on Shabbat (4) Ya'aleh V'Yavo (1) Yom Kippur Evening Pray… (1) Yom Kippur Mussaf Prayer (1) Yom Kippur Prohibitions (2) Yom Tov Candle Lighting (4) Zimmun (3) Zimmun and Joining Groups (3) Zimmun — Joining and Sp… (2)
Answering Amen Dur… Must one organize/prepare festival prayers (Mussaf and other infrequent prayers) before praying them, or is preparation unnecessary?
Rema's ruling that prayer from siddur suffices is proper (yafeh pask), as it is more effective. Howe…
Answering Amen Dur… For piyyutim (liturgical poems) and prayers requiring deep understanding of their meaning, can a prayer book substitute for advance mental preparation?
For piyyutim and prayers with profound meaning that requires understanding (piyyutim chamurot pirosh…
Kavvanah in Prayer May one raise one's voice during the Amidah if one cannot concentrate while whispering?
The Yerushalmi's account of R' Yonah praying aloud at home must be understood as intentional (to tea…
Kavvanah in Prayer On Rosh Hashanah and Yom Kippur, may one pray the Amidah aloud even in a congregation?
On Rosh Hashanah and Yom Kippur, raising the voice in congregation is permitted to arouse kavvanah, …
Kavvanah in Prayer May one pray the Amidah in a language other than Hebrew?
An individual should pray only in Hebrew because the ministering angels do not attend to Aramaic or …
Kavvanah in Prayer May an individual pray in Aramaic?
The Tosafot explain that the angels understand all languages but Aramaic is specifically degraded in…
Not Passing Before… Is one permitted to sit within four cubits if engaged in prayer-related study?
Prayer-related study is permitted because Eizehu Mekoman is recited before prayer and is established…
Not Passing Before… Is one permitted to sit within four cubits if engaged in Torah study not related to prayer?
General Torah study should not permit sitting within four cubits; only prayer-related matters do so.…
Not Passing Before… May one sit within four cubits of a praying person if one is weak or infirm?
The ruling permitting the weak to sit is strange and questionable. Why is weakness a justification t…
Not Passing Before… What is the underlying reason for the prohibition on disrupting someone praying?
The reason derives from the case of Hannah's prayer: when Hannah prayed silently within Eli's jurisd…
Errors in Shemoneh… May one interrupt prayer to avoid being struck by an animal or wagon on the road?
[Questions whether movement is truly permitted, citing the Ri's view that such movement (hlicha) con…
Modim and Responsi… Are those exempt from Shema also exempt from prayer?
Those exempt from prayer are exempt because prayer is rabbinic in origin.
Modim and Responsi… Are women obligated in prayer (Amidah)?
Women are obligated in prayer because it is a positive mitzvah not time-bound; Tosafot derive this f…
Individual Additio… If a person enters the synagogue and finds the congregation already praying the Amidah, may they begin their own Amidah?
The reason one must complete before Kedushah is that Kedushah may not be said by an individual; simi…
Individual Additio… If a person must begin the Amidah to juxtapose Geulah to Tefillah (or because time is passing) and the chazzan reaches Modim while the person is mid-blessing, should the person bow?
Bowing mid-blessing due to the congregation's bowing is considered a slight interruption (hefsek), u…
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