Musnad Abu Ya'la al-Mawsili 150:193

Abu Kurayb narrated to us, Ibn Abi Za'idah and 'Abd al-Rahim ibn Sulayman narrated to us, from Ash'ath ibn Siwar, from Abu al-Zubayr, from Jabir, from Umm Kulthum, from 'A'ishah, who said: "The Messenger of Allah (peace be upon him) had intercourse with her without ejaculating." She said: "So we performed ghusl (ritual bathing)."