Asim said: I asked Anas (may Allah be pleased with him): Do you not know that the Messenger of Allah (peace and blessings be upon him) said: "There are no pacts of the Jahiliyyah in Islam"? Sayyiduna Anas (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) established a pact between Quraysh and the Ansar in my house.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الفرائض / 12522