בר חבו

Bar Chavu writes tefillin during the time of Abaye [Berakhot (53b) Abaye would bless upon the light of the house of Bar Chavu, and in Bava Metzia (29b) tefillin are commonly found in the house of Bar Chavu, and in Megillah (18b) Abaye permits in the house of Bar Chavu to write tefillin not from the text, and there is also Ada Bar Chavu].