(21) باب مَا جَاءَ فِي سَهْمِ الصَّفِيِّ
A'ishah said "Safiyyah was called after the word safi (a special portion of the Prophet)."
Reference: Sunan Abi Dawud 2994
In-book reference: Book 20, Hadith 67
English translation: Book 19, Hadith 2988