Sayyiduna Salamah bin al-Akwa' (may Allah be pleased with him) narrates: My uncle brought a man of the tribe of Ajlan, along with his horse, together with seventy of the polytheists, until he stopped with them before the Messenger of Allah (peace and blessings be upon him). The Messenger of Allah (peace and blessings be upon him) said: "Let them go." The narrator says: So the Messenger of Allah (peace and blessings be upon him) paid the blood money on their behalf, and on this Allah, the Mighty and Majestic, revealed this verse: "And it is He who withheld their hands from you and your hands from them in the valley of Makkah, after He had given you victory over them" [Surah al-Fath: 24]
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6219