BANU-AL-MUSHTALIQ was a prosperous Jewish topwnship
Muhammed did not approve coitus interruption with the captive women of Banu-al-Mustaliq, but he allowed the women to be raped...( 5.59.459
this is where the prophet forced a beautiful jewish girl juwariya to marry him ,after he ordered the killing of her other family memners.
"Narrated Ibn Aun:
I wrote a letter to Nafi and Nafi wrote in reply to my letter that the Prophet had suddenly attacked Bani Mustaliq without warning while they were heedless and their cattle were being watered at the places of water. Their fighting men were killed and their women and children were taken as captives; the Prophet got Juwairiya on that day. Nafi said that Ibn 'Umar had told him the above narration and that Ibn 'Umar was in that army.%u201D Hadith Volume 3, Book 46, Number 717: