Musnad Ahmad 30:122

Al-Walid narrated to us, Al-Awza'i narrated to us, Al-Zuhri narrated to me, from Abu Salamah, from Abu Hurairah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said on the day after the Day of Sacrifice (Yawm al-Nahr), while he was in Mina: "We are camping tomorrow at Khayf Bani Kinanah, where they swore an oath upon disbelief" — meaning by that Al-Muhassab. And that is because Quraysh and Kinanah formed an alliance against Banu Hashim and Banu al-Muttalib: that they would not intermarry with them, nor trade with them, until they handed over the Messenger of Allah (peace and blessings of Allah be upon him) to them.