Abdur Rahman bin Wa'lah said: I asked Sayyiduna Ibn Abbas (may Allah be pleased with them both) about the skin of a dead animal, so he replied: The Messenger of Allah (peace and blessings be upon him) said: "By tanning, it becomes purified." Imam Darimi (may Allah have mercy on him) was asked: Do you also say the same? He replied: Yes, the skin of that animal (which is lawful to eat) can be used.