Amr bin Shu'ayb (may Allah have mercy on him) narrates from his father, and he from his grandfather (Sayyiduna Abdullah bin Amr, may Allah be pleased with them both), that the Messenger of Allah (peace and blessings be upon him) delivered a sermon in the year of the Conquest of Makkah and said: "O people! Whatever alliance there was in Jahiliyyah, Islam has only made it stronger, and there is no (new) alliance in Islam. The Muslims are one hand against others; the protection granted by the lowest of them is honoured; the farthest of them returns (the spoils) to them; the spoils of their raiding parties are shared with those who stay behind; no believer will be killed in return for a disbeliever; the blood money of a disbeliever is half the blood money of a believer; there is no jalab and no janab (the zakah collector does not make people bring their animals to him, nor do the owners take their animals away from him); and their zakah is not to be taken except at their own dwellings."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنايات / 15912