Musnad Abu Ya'la al-Mawsili 150:238

Abu Sa'id narrated to us, Abu Khalid narrated to us, from Layth, from Mujahid, from 'Aishah, who said: A gift was presented to the Messenger of Allah (may Allah bless him and grant him peace) while he was fasting. We said, "O Messenger of Allah, were it not for your fasting, we would have gifted you something." He said, "Bring it."