Sahih Muslim 1106
Sahih Muslim · Book 13: The Book of Fasting · Clarifying that Kissing when fasting is not unlawful for the one whose desire is not provoked by that
وَحَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ ، حَدَّثَنَا سُفْيَانُ ، عَنْ أَبِي الزِّنَادِ ، عَنْ عَلِيِّ بْنِ الْحُسَيْنِ ، عَنْ عَائِشَةَ ، رضى الله عنها أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يُقَبِّلُ وَهُوَ صَائِمٌ .
'A'isha (Allah be pleased with her) reported that Allah's Apostle (peace be upon him) kissed (his wives) while fasting.