Al-Kāfi - Volume 6 > Slaughtering by the People of the Book
Hadith #7

وَ عَنْهُ عَنْ حَمَّادِ بْنِ عِيسَى عَنِ الْحُسَيْنِ بْنِ الْمُخْتَارِ عَنِ الْحُسَيْنِ بْنِ عَبْدِ اللَّهِ قَالَ اصْطَحَبَ الْمُعَلَّى بْنُ خُنَيْسٍ وَ ابْنُ أَبِي يَعْفُورٍ فِي سَفَرٍ فَأَكَلَ أَحَدُهُمَا ذَبِيحَةَ الْيَهُودِ وَ النَّصَارَى وَ أَبَى الْآخَرُ عَنْ أَكْلِهَا فَاجْتَمَعَا عِنْدَ أَبِي عَبْدِ اللَّهِ ( عليه السلام ) فَأَخْبَرَاهُ فَقَالَ أَيُّكُمَا الَّذِي أَبَى قَالَ أَنَا قَالَ أَحْسَنْتَ .

7. It is narrated from the narrator of the previous Hadith from Hammad ibn ‘Isa from al-Husayn ibn al-Mukhtar from al-Husayn ibn ‘ Abd Allah who has said the following: “At one time I travelled with al-Mu‘alla’ ibn Khunays and ibn abu Ya’fur. One of them used the flesh of the animal slaughtered by Jews and Christians and the other abstained. They both went to visit abu ‘Abd Allah, ‘Alayhi al-Salam, and informed him of their story. He (the Imam) asked, ‘Which one of you abstained?’ He (one of them) said, ‘I abstained.’ He (the Imam) said, ‘You have done the right thing.’”