Musnad Ahmad 1159:25

'Abd al-Razzaq narrated to us, he said: Ma'mar narrated to us, from al-Zuhri, from Abu Salamah ibn 'Abd al-Rahman, from Abu Sufyan ibn al-Mughirah ibn al-Akhnas, that he entered upon Umm Habibah, and she gave him *sawiq* (a drink made of roasted barley or wheat) to drink. Then he stood to pray, and she said to him: "Perform ablution, O son of my brother, for I heard the Messenger of Allah, peace and blessings of Allah be upon him, say: 'Perform ablution from what the fire has touched.'"