It is narrated from Sayyiduna Malik bin Nadlah al-Jushami (may Allah be pleased with him) that he came to the Messenger of Allah (peace and blessings be upon him) in a shabby state. He (peace and blessings be upon him) asked: "Do you have wealth?" I said: "Yes." He (peace and blessings be upon him) asked: "What kind of wealth?" I said: "Of every kind: camels, horses, slaves and sheep." He (peace and blessings be upon him) said: "Since Allah has given you wealth, its effect should be visible on you." The narrator says that the Messenger of Allah (peace and blessings be upon him) said: "Are the camels of your people born with sound ears, and then you take a razor and cut their ears and say that they are 'buhur' (earless), and you slit their ears or their hides and say that they are 'surum' (forbidden), and then you make them unlawful for yourself and your family?" I said: "Yes." He (peace and blessings be upon him) said: "Then whatever Allah has given you is lawful for you; the arm of Allah is stronger than your arm, and the razor of Allah is sharper than your razor." This hadith has a sahih (authentic) chain. A group of the imams of Kufah narrated it from Abu Ishaq, and Abu al-Za'ra' Amr bin Amr corroborated Abu Ishaq al-Sabi'i. The two of them did not record it because Malik bin Nadlah has no narrator other than his son Abu al-Ahwas, whereas Imam Muslim recorded the narration of Abu al-Malih bin Usamah from his father, who has no narrator other than his son, and likewise the narration of Abu Malik al-Ashja'i from his father. Therefore this one is more deserving than all of those.