Musnad Abu Ya'la al-Mawsili 150:211

'Abd al-A'la narrated to us, Hammad ibn Salamah narrated to us, from Hisham ibn 'Urwah, from 'Urwah, from 'Aishah, that she said: The Messenger of Allah (may Allah bless him and grant him peace) used to kiss while he was fasting.