Are three blessings required before reading the Megillah on Purim night?

PurimMegillah Reading

Synopsis

Three blessings are recited before reading the Megillah: al mikra Megillah, she'asa nissim, and shehecheyanu. The blessing shehecheyanu is repeated during the day according to some authorities.

Early Acharonim
Lenient
Strict
Lesser cited
Major authority

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