(21) باب مَا جَاءَ فِي سَهْمِ الصَّفِيِّ
Anas said "A beautiful slave girl fell to Dihyah". The Apostle of Allaah(ﷺ) purchased her for seven slaves. He then gave her to Umm Sulaim for decorating her and preparing her for marriage. The narrator Hammad said, I think he said "Safiyyah daughter of Huyayy should pass her waiting period in her (Umm Sulaims') house."
Reference: Sunan Abi Dawud 2997
In-book reference: Book 20, Hadith 70
English translation: Book 19, Hadith 2991