רב יהודה בר חביבא

Rav Yehudah bar Chaviva was an amora whose teachings appear across several tractates of the Talmud. In Makkot he brings a dispute among three tannaim over the minimum measure of a bright spot (baheret) — one holding the size of a split bean (geris), another that it be visible from its top, and a third the measure of two hairs — and provides a mnemonic to recall the differing views.

In Ketubot he brings a ruling in the name of Shmuel regarding the time involved when one separates after the period of nursing, with the figure given as three days; an alternate version records that he taught this matter before Shmuel himself. He also appears in Berachot in connection with the proper berachah over pat haba’ah b’kisnin (a bread-like baked food), in a setting where Rav Yehudah was occupied with a matter for his son at his house, prompting a discussion of whether one recites “HaMotzi lechem min ha’aretz.”