Ubayy, and that is correct. Thus said Zubaydi.
حدثنا حسين بن محمد ويحيى بن أبي بكير عن سفيان بن عيينة عن الزهري
أبي وهو الصواب كذا قال الزبيدي
No references are available.
Its isnad is sahih. Yahya bin Abu Bukayr is trustworthy, and his hadith is found in the collections of the group of major compilers, and Ahmad praised him greatly. In the printed edition, it appears as "Husayn bin Muhammad bin Yahya bin Abu Bakr," which is a gross error. Such errors change the course of the chain of transmission when the original manuscript is not consulted alongside a review of the reference sources, and uncovering all of this takes a great deal of time.