91. hadíth
وَ قَالَ اَلنَّبِيُّ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ: «إِنَّ اَللَّهَ تَبَارَكَ وَ تَعَالَى كَرِهَ لِي سِتَّ خِصَالٍ وَ كَرِهْتُهُنَّ لِلْأَوْصِيَاءِ مِنْ وُلْدِي وَ أَتْبَاعِهِمْ مِنْ بَعْدِي أَحَدُهَا اَلرَّفَثُ فِي اَلصَّوْمِ ».
The Prophet (peace be upon him and his family) said: "Indeed, Allah (swt), Blessed and Exalted, has disliked six traits for me, and I have disliked them for the successors from among my progeny and their followers after me. One of them is indecency during fasting."