Al-Matalib al-'Aliyah 1903 — Blood money

It is narrated from the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her): I found a writing in the hilt of the sword of the Messenger of Allah (peace and blessings be upon him), in which was written: "Indeed, the most severe of people in transgression is the one who strikes someone who did not strike him, and the one who kills (in retaliation) someone who did not kill (his kin), and the one who takes as his patron someone other than his real benefactors (those who freed him). So whoever does that has disbelieved in Allah and His Messenger, and no obligatory or voluntary deed of his will be accepted. And these rulings were also written in that document: The blood and the wealth of all Muslims are equal (in retaliation and blood-money); even an ordinary one among them can take on the responsibility of granting protection on behalf of them all; no Muslim will be killed for a disbeliever, nor will any person under covenant (dhimmi) be killed during the term of his covenant; followers of two different religions will not inherit from one another; a woman will not be married while her paternal aunt or her maternal aunt is married to the same man (that is, combining both in marriage at the same time); there is no (voluntary) prayer after the Asr prayer until the sun sets; and no woman should travel a distance of three nights without her mahram."