Shadad bin Aus bin Thabit · The Book of ad-Dahaya (Sacrifices)

"The Messenger of Allah addressed us on the Day of Sacrifice and said: 'whoever prays as we pray nand offers the sacrtifice as we do, has done the rituals properly. Whoever offered the sacrifice before the prayer, that is just a sheep for meat." Abu Burdah said: 'O Messengers of Allah, by Allah, I offered my sacrifice before I went out to pray. I knew that this day is a day of eating and drinking, so I hastened to eat…

"I said: 'O Messenger of Allah, I release my dog and I catch the game, but I cannot find anything to slaughter it with, so I slaughter it with a Marwah or a stick,; He said: 'Shed the blood with whatever you wish, and say the name of Allah."'

"A man form among the Ansar had a she-camel which used to graze in front of Uhud. Something happened to it, and he slaughtered it with a stake,"- (Ayyub, one of the narrators, said) I said to Zaid:' A stake of wood or of iron?" He said "No of wood."- "Then he went to the Prophet and asked him, and he told him to eat it." (Sahih )

"If the blood is shed and the name of Allah is mentioned, then eat, unless (it is slaughtered) with teeth or nails."

"I said: 'O Messenger of Allah we are going to meet the enemy tomorrow and we do not have any knives.' The Messenger of Allah said: "If the blood is shed and the name of Allah is mentioned, then eat, unless (it is slaughtered (with teeth or nails, and I will tell you about that. As for teeth, they are bones, and as for nails, they are the knives of the Ethiopians."' (Sahih )