الكافي- ط الاسلامية, volume 6, page 230

8. Muhammad ibn Yahya has narrated from in a marfu‘ manner the following: “Abu al-Hassan, al-Rida’ (a.s.), has said, ‘When you slaughter a sheep and remove its skin or a certain part of its skin before it dies, it then is not lawful to use it for food.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

1. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from ‘Umar ibn ‘Udhaynah from al-Fudayl ibn Yasar who has said the following: “I once asked abu Ja‘far (a.s.), about the case of a man who slaughters an animal but by mistake the knife cuts off its head before it dies. He (the Imam) said, ‘It is a fast slaughtering and it is not unlawful to use it for food.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

2. Ali ibn Ibrahim has narrated from his father from Hammad ibn ‘Isa from Hariz from Muhammad ibn Muslim who has said the following: “I once asked abu Ja‘far (a.s.), about the case of a Muslim man who slaughters a sheep and mentions the name of Allah but because of sharpness of the knife he cuts off the head. He (the Imam) said, ‘If blood has come out you can use it for food.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

Ali Bin Ibrahim, from his father, from Hroun Bin Muslim, from Mas’ada Bin sadaqa who said, ‘I heard Abu Abdullah asws , and he asws had been asked about the man who slaughtered, so the knife hastened and the head was cut off. So he asws said: ‘The vivid slaughter. There is no problem with eating it when it was not deliberate with that’.

Translation: HubeAli — attributed by Thaqalayn·The Arabic above is the original.