Is Shabbos morning kiddush (Kiddush Rabbah) biblically or rabbinically obligated?

ShabbatKiddush

Synopsis

The morning kiddush is universally held to be rabbinic in origin, not biblical. Its name 'Kiddush Rabbah' is ironic, similar to 'sagi nahor' (a euphemism for the blind).

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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