Sahih Muslim , Book 13, Hadith 79 (In-Book) ⓘ
'A'isha (Allah be pleased with her) said that the Messenger of Allah kissed one of his wives while he was fasting, and then she ('A'isha) smiled (as she narrated).
حَدَّثَنِي عَلِيُّ بْنُ حُجْرٍ، حَدَّثَنَا سُفْيَانُ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، - رضى الله عنها - قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُقَبِّلُ إِحْدَى نِسَائِهِ وَهُوَ صَائِمٌ . ثُمَّ تَضْحَكُ .
also referenced under: Hadith 1106 (Reference) & Book 6, Hadith 2436 (USC-MSA)