Ibn Awn (may Allah have mercy on him) said: I wrote a letter to Nafi' (may Allah have mercy on him), asking him about inviting the polytheists. He (may Allah have mercy on him) wrote back to me that Sayyiduna Ibn Umar (may Allah be pleased with them both) informed him that the Messenger of Allah (peace and blessings be upon him) attacked Banu al-Mustaliq while they were unaware and their livestock were being watered at the water. And Sayyidah Juwayriyah bint al-Harith (may Allah be pleased with her) was among the spoils obtained from there. And Sayyiduna Ibn Umar (may Allah be pleased with them both) said: "And I was among the cavalry."