Qutaybah ibn Sa'id narrated to us, from Layth, from Mu'awiyah ibn Salih, from 'Abdullah ibn Abi Qays, who said: I asked 'A'ishah about the Witr prayer of the Messenger of Allah, peace and blessings be upon him. He then mentioned the hadith. I said: "What did he do in the case of major ritual impurity (janabah)? Did he perform the ritual bath (ghusl) before sleeping, or did he sleep before performing the bath?" She said: "He did all of that. Sometimes he would perform the bath and then sleep, and sometimes he would perform ablution (wudu) and then sleep." I said: "Praise be to Allah, who has made ease in the matter."