Musnad al-Humaydi

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: On the occasion of the conquest of Makkah, the Noble Prophet (peace and blessings be upon him) said at the threshold of the Ka'bah: “All praise is due to Allah alone, Who fulfilled His promise, Who helped His servant, Who single-handedly defeated the confederates. Be aware! Deliberate murder, if committed mistakenly, is when a person is killed with a stick or staff; for this, the penalty is one hundred camels as a severe blood money, of which forty will be pregnant she-camels. Be aware! Every custom and every blood of the time of ignorance (the narrator is unsure, perhaps these are the words) and every wealth is under my two feet, except for the service of the Ka'bah and the tradition of providing water to the pilgrims, for I will keep both of these as they were for their respective people.”