٣- عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ أَوْ عَنْ مُحَمَّدِ بْنِ عَلِيٍّ عَنْ مُوسَى بْنِ سَعْدَانَ عَنْ بَعْضِ رِجَالِهِ قَالَ كُنْتُ عِنْدَ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) فَأَتَاهُ رَجُلٌ فَقَالَ لَهُ جُعِلْتُ فِدَاكَ مَا تَرَى فِي شَابَّيْنِ كَانَا مُضْطَجِعَيْنِ فَوُلِدَ لِهَذَا غُلامٌ وَلِلآخَرِ جَارِيَةٌ أَيَتَزَوَّجُ ابْنُ هَذَا ابْنَةَ هَذَا قَالَ فَقَالَ نَعَمْ سُبْحَانَ اللهِ لِمَ لا يَحِلُّ فَقَالَ إِنَّهُ كَانَ صَدِيقاً لَهُ قَالَ فَقَالَ وَإِنْ كَانَ فَلا بَأْسَ قَالَ فَقَالَ فَإِنَّهُ كَانَ يَفْعَلُ بِهِ قَالَ فَأَعْرَضَ بِوَجْهِهِ [عَنْهُ] ثُمَّ أَجَابَهُ وَهُوَ مُسْتَتِرٌ بِذِرَاعَيْهِ فَقَالَ إِنْ كَانَ الَّذِي كَانَ مِنْهُ دُونَ الإيقَابِ فَلا بَأْسَ أَنْ يَتَزَوَّجَ وَإِنْ كَانَ قَدْ أَوْقَبَ فَلا يَحِلُّ لَهُ أَنْ يَتَزَوَّجَ‏.
3. Ali ibn Ibrahim has narrated from his father or from Muhammad ibn Ali from Musa ibn Sa‘dan from certain persons of his people who have said the following: “Once I was with abu ‘Abd Allah , when a man came and said, ‘I pray to Allah to keep my soul in service for your cause, if two young men slept together and one has a son and the other has a daughter; if his son could marry the other man’s daughter.’ He (the narrator) has said that he (the Imam) said, ‘Yes, Allah is free of all defects, why can it be unlawful?’ The man said they were friends. He (the Imam) said, ‘Even if such is the case it is not unlawful.’ The man said, ‘He was doing to him.’ He (the Imam) turned away his face then, while covering his face with his arms, said, ‘Even if it was what it was without doing the hole it is not unlawful to marry but if awqaba (made a hole in him) then marriage is not lawful.’” 