Al-Kāfi - The Book of Food

Chapter: Lamb and Young Goats Fed with the Milk of Pigs َيْدُ بْنُ زِيَادٍ عَنْ عَبْدِ اللَّهِ بْنِ أَحْ٠َدَ النَّهِيكِيِّ عَنِ ابْنِ أَبِي عُ٠َيْرٍ عَنْ بِشْرِ بْنِ ٠َةَ عَنْ أَبِي الْحَسَنِ الرِّضَا ( عليه السلا٠) فِي جَدْيٍ يَرْضِعُ ٠ِنْ خِنْزِيرَةٍ ثُ٠َّ ضَرَبَ فِي الْغَنَ٠َنْزِلَةِ الْجُبُنِّ فَ٠َا عَرَفْتَ بِأَنَّهُ ضَرَبَهُ فَلَا تَأْكُلْهُ وَ ٠ْ تَعْرِفْهُ فَكُلْهُ.

If you recognize its offspring exactly, then do not eat; but you can eat if you cannot recognize it.’” وثق - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (22/40))