It is narrated from Sayyiduna Ibn Amr (may Allah be pleased with him) that when the Noble Prophet (peace and blessings be upon him) entered Makkah in the year of the conquest of Makkah, he stood on the steps of the Ka'bah to deliver a sermon among the people. After praising and glorifying Allah, he said among other things: "O people! All the agreements made in the time of ignorance, Islam only increases their severity, but now they have no importance in Islam, and after the conquest of Makkah, the command of migration no longer remains. Muslims are united against everyone else; the blood of all is equal. Even the lowest-ranking Muslim can grant protection, which will be honored up to the last Muslim. No Muslim will be killed in retaliation for a disbeliever, and the blood money for a disbeliever is half that of a Muslim. There is no validity in bringing the animals of zakat to oneself or in evading zakat. Zakat will be collected from Muslims in their own regions." Then the Noble Prophet (peace and blessings be upon him) descended.