Hadith 3898
´It was narrated that Mujahid said:` "I took Tawus by the hand and brought him to Ibn Rafi' bin Khadij, and he told him, narrating from his father, that the Messenger of Allah forbade leasing land. Tawus rejected that and said: 'I heard Ibn 'Abbas (say) that he did not see anything wrong with that.'"
Hadith 4409
´It was narrated that Rafi bin Khadij said:` "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 )