Al-Kāfi
Hadith 20555- عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنِ الْحَسَنِ بْنِ عَطِيَّةَ عَنْ عُذَافِرٍ الصَّيْرَفِيِّ قَالَ قَالَ أَبُو عَبْدِ اللهِ (عَلَيْهِ السَّلام) تَرَى هَؤُلاءِ الْمُشَوَّهِينَ خَلْقُهُمْ قَالَ قُلْتُ نَعَمْ قَالَ هَؤُلاءِ الَّذِينَ آبَاؤُهُمْ يَأْتُونَ نِسَاءَهُمْ فِي الطَّمْثِ.
5. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from al-Hassan ibn ‘Atiyyah from ‘Adhafir al-Sayrafiy who has said the following: “Abu ‘Abd Allah (a.s.), asked, ‘Do you see those who are born with deformities?’ I replied, ‘Yes, I see them.’ He (the Imam) said, ‘It is because their fathers go to bed with their wives during their experiencing Hayd (menses).”’