مُوَطَّأُ مَالِكٍ
Muwatta Malik 653
Fasting
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَطَاءِ بْنِ يَسَارٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عَبَّاسٍ، سُئِلَ عَنِ الْقُبْلَةِ، لِلصَّائِمِ فَأَرْخَصَ فِيهَا لِلشَّيْخِ وَكَرِهَهَا لِلشَّابِّ .
Yahya related to me from Malik from Zayd ibn Aslam from Ata ibn Yasar that Abdullah ibn Abbas was asked about people kissing while fasting and he said that he allowed it for old men but disapproved of it for young men.
Arabic/English book reference: Book 18, Hadith 19