Musnad Ahmad 1187:1

'Abd al-Rahman ibn Mahdi narrated to us, he said: Kharijah ibn al-Harith al-Muzani narrated to me, he said: Salim ibn Sarj narrated to me, he said: I heard Umm Sabiyyah al-Juhaniyyah saying: "My hand and the hand of the Messenger of Allah, peace and blessings of Allah be upon him, alternated in ablution from a single vessel."