Musnad Ahmad 1655

It was narrated from ‘Abdur-Rahman bin ‘Awf that the Prophet (ﷺ) said: "I was present at the Treaty of al-Mutayyabeen with my paternal uncles when I was a boy, and I would not like to have red camels in return for breaking (that deal).” Az-Zuhri said: The Messenger of Allah (ﷺ) said: "Islam did not come after any alliance but it made it stronger; but there are no alliances in Islam.” The Messenger of Allah (ﷺ) created a bond between Quraish and the Ansar.