Musnad Abu Ya'la al-Mawsili 150:371

Al-Jarrah ibn Makhlad narrated to us, Umar ibn Yunus al-Yamami narrated to us, al-Mufaddal ibn Thawab—a man from the people of al-Yamamah—narrated to us, he said: Husayn ibn Fadi' narrated to me, from his father, from Sayf ibn Abdullah al-Himyari, who said: I entered, along with men who were with me, upon Aisha. We asked her about a man who touches his private part. She said: I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: "I do not care whether I touched it or my nose."