Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates that in Madinah there were (the Jewish) tribes of Qurayzah and Nadir. Nadir was more honorable than Qurayzah. Whenever a man from Nadir killed a man from Qurayzah, one hundred wasq of dates would be given as blood money. But whenever a man from Qurayzah killed a man from Nadir, he would be killed in retaliation for the slain. When the Prophet Muhammad (peace and blessings be upon him) was sent, a man from Nadir killed a man from Qurayzah. They said: Hand him over to us, we will kill him. The people of Nadir said: The Prophet Muhammad (peace and blessings be upon him) will decide between us and you. They came to him, and Allah the Exalted revealed this verse: __QUR_5:42__ (If you judge between them, then judge with justice), and justice is that a life is taken for a life. Then this verse was revealed: __QUR_5:50__ (Do they seek the judgment of ignorance?).