It is narrated from Qasim bin Muhammad that he said: I heard a man asking Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) about the meaning of "Nafl." Sayyiduna Ibn Abbas (may Allah be pleased with them both) said that a horse and weapons are included in Nafl. Then that man asked the same question again, and Sayyiduna Ibn Abbas (may Allah be pleased with them both) gave the same answer. Then that man said: I am asking about those "Anfal" which Allah Almighty has mentioned in His Book. Qasim says that he kept asking until Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) began to feel annoyed, and he said: Do you know, this man's example is like that of Sabigh, whom Sayyiduna Umar bin Khattab (may Allah be pleased with him) had beaten.

Imam Malik, may Allah have mercy on him, was asked: If a person kills a disbeliever, will his belongings be given to that person without the order of the Imam? He replied: Without the order of the Imam, they will not be given. Rather, it is up to the Imam; if he deems it appropriate, he may give such an order. And it has not reached me that the Messenger of Allah, peace and blessings be upon him, gave such an order in any battle except the Battle of Hunayn.