Al-Harith bin Bilal bin al-Harith narrates from his father, Sayyiduna Bilal bin al-Harith (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) granted him the entire valley of al-Aqiq as a land grant.
Hadith Referenceالمعجم الكبير للطبراني / باب الباء / 1134