Narrated Abu Huraira: Zainab's original name was "Barrah," but it was said' "By that she is giving herself the prestige of piety." So the Prophet changed her name to Zainab.
Hadith ReferenceSahih Bukhari / The Book of Al-Adab (Good Manners) / Hadith: 6192
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة