عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ حَنَانِ بْنِ سَدِيرٍ قَالَ سُئِلَ أَبُو عَبْدِ اللَّهِ ( عليه السلام ) وَ أَنَا حَاضِرٌ عِنْدَهُ عَنْ جَدْيٍ يَرْضِعُ مِنْ خِنْزِيرَةٍ حَتَّى كَبِرَ وَ شَبَّ وَ اشْتَدَّ عَظْمُهُ ثُمَّ إِنَّ رَجُلًا اسْتَفْحَلَهُ فِي غَنَمِهِ فَأُخْرِجَ لَهُ نَسْلٌ فَقَالَ أَمَّا مَا عَرَفْتَ مِنْ نَسْلِهِ بِعَيْنِهِ فَلَا تَقْرَبَنَّهُ وَ أَمَّا مَا لَمْ تَعْرِفْهُ فَكُلْهُ فَهُوَ بِمَنْزِلَةِ الْجُبُنِّ وَ لَا تَسْأَلْ عَنْهُ .
1. Ali ibn Ibrahim has narrated from his father from Hanan ibn Sadir who has said the following: “Once abu ‘ Abd Allah , was asked, when I was with him (the Imam) about the young goat fed with milk from pigs until it grew up and became of strong bones; then a man used it for impregnating the flock of his sheep and young were produced. He (the Imam) said, ‘If you can find out its offspring exactly, then do not get close to it; but you can use for food those that you cannot recognize because it is like cheese; and do not ask about it.’” 