Musnad Abu Ya'la al-Mawsili 147:20

Abu Hammam narrated to us, Abd al-Majid ibn Abd al-Aziz ibn Abi Rawwad narrated to us, from Ibn Jurayj, from the one who narrated to him, from Anas ibn Malik, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "When one of you has intercourse with his wife, let him be truthful with her. Then, when he has fulfilled his need before she has fulfilled her need, let him not hasten her until she has fulfilled her need."