Bukhari

Narrated Rafi` bin Khadij: We were with the Prophet in Dhul-Hulaifa and there the people were struck with severe hunger. Then we got camels and sheep as war booty (and slaughtered them). The Prophet was behind all the people. The people hurried and fixed the cooking pots (for cooking) but the Prophet came there and ordered that the cooking pots be turned upside down. Then he distributed the animals, regarding ten sheep as equal to one camel. One of the camels ran away and there were a few horses with the people. They chased the camel but they got tired, whereupon a man shot it with an arrow whereby Allah stopped it. The Prophet said, "Among these animals some are as wild as wild beasts, so if one of them runs away from you, treat it in this way." I said. "We hope, or we are afraid that tomorrow we will meet the enemy and we have no knives, shall we slaughter (our animals) with canes?" The Prophet said, "If the killing tool causes blood to gush out and if Allah's Name is mentioned, eat (of the slaughterer animal). But do not slaughter with a tooth or a nail. I am telling you why: A tooth is a bone, and the nail is the knife of Ethiopians."

Ibn Abbas (may Allah be pleased with them both) said that if someone forgets to say Bismillah, there is no harm in it. And the statement of Allah the Exalted «ولا تأكلوا مما لم يذكر اسم الله عليه وإنه لفسق‏» "And do not eat of that upon which the name of Allah has not been mentioned, for indeed, it is grave disobedience. And (no good deed) is forgotten by mistake, nor can one who forgets be called a sinner." And the statement of Allah the Exalted in the Quran «وإن الشياطين ليوحون إلى أوليائهم ليجادلوكم وإن أطعتموهم إنكم لمشركون‏» "Indeed, the devils inspire their allies to dispute with you, and if you obey them, you would surely be polytheists."

Ibn Abbas (may Allah be pleased with them both) said that if someone forgets to say Bismillah, there is no harm in it. And the statement of Allah the Exalted «ولا تأكلوا مما لم يذكر اسم الله عليه وإنه لفسق‏» "And do not eat of that upon which the name of Allah has not been mentioned, for indeed, it is grave disobedience. And (no good deed) is forgotten by mistake, nor can one who forgets be called a sinner." And the statement of Allah the Exalted in the Quran «وإن الشياطين ليوحون إلى أوليائهم ليجادلوكم وإن أطعتموهم إنكم لمشركون‏» "Indeed, the devils inspire their allies to dispute with you, and if you obey them, you would surely be polytheists."

Narrated Rafi` bin Khadij: We were with the Prophet in Dhul-Hulaifa and there the people were struck with severe hunger. Then we got camels and sheep as war booty (and slaughtered them). The Prophet was behind all the people. The people hurried and fixed the cooking pots (for cooking) but the Prophet came there and ordered that the cooking pots be turned upside down. Then he distributed the animals, regarding ten sheep as equal to one camel. One of the camels ran away and there were a few horses with the people. They chased the camel but they got tired, whereupon a man shot it with an arrow whereby Allah stopped it. The Prophet said, "Among these animals some are as wild as wild beasts, so if one of them runs away from you, treat it in this way." I said. "We hope, or we are afraid that tomorrow we will meet the enemy and we have no knives, shall we slaughter (our animals) with canes?" The Prophet said, "If the killing tool causes blood to gush out and if Allah's Name is mentioned, eat (of the slaughterer animal). But do not slaughter with a tooth or a nail. I am telling you why: A tooth is a bone, and the nail is the knife of Ethiopians."