The Book of Fasting
13/12. Chapter:
Clarifying that Kissing when fasting is not unlawful for the one whose desire is not provoked by that
Sahih Muslim
وَحَدَّثَنِيهِ يَعْقُوبُ الدَّوْرَقِيُّ، حَدَّثَنَا إِسْمَاعِيلُ، عَنِ ابْنِ عَوْنٍ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، وَمَسْرُوقٍ أَنَّهُمَا دَخَلاَ عَلَى أُمِّ الْمُؤْمِنِينَ يَسْأَلاَنِهَا . فَذَكَرَ نَحْوَهُ .
It is further narrated on the authority of Aswad and Masruq that they went to the Mother of the Believers and they asked her (and the rest of the hadith is the same)
Reference : Sahih Muslim 1106hIn-book reference : Book 13, Hadith 86USC-MSA web (English) reference : Book 6, Hadith 2442