كتاب الصيام
13  
The Book of Fasting
(12)
Chapter: Clarifying that Kissing when fasting is not unlawful for the one whose desire is not provoked by that
(12)
باب بَيَانِ أَنَّ الْقُبْلَةَ فِي الصَّوْمِ لَيْسَتْ مُحَرَّمَةً عَلَى مَنْ لَمْ تُحَرِّكْ شَهْوَتَهُ ‏‏
Sahih Muslim 1106 j

A hadith like this has been narrated by Yahya b. Abu Kathir with the same chain of transmitters.

وَحَدَّثَنَا يَحْيَى بْنُ بِشْرٍ الْحَرِيرِيُّ، حَدَّثَنَا مُعَاوِيَةُ، - يَعْنِي ابْنَ سَلاَّمٍ - عَنْ يَحْيَى، بْنِ أَبِي كَثِيرٍ بِهَذَا الإِسْنَادِ مِثْلَهُ ‏.‏
Reference : Sahih Muslim 1106j
In-book reference : Book 13, Hadith 88
USC-MSA web (English) reference : Book 6, Hadith 2444
  (deprecated numbering scheme)