Katheer bin 'Abdullah bin 'Amr bin ‘Awf al-Muzani narrated from his father, from his grandfather, that

The Messenger of Allah (ﷺ) allocated to Bilal bin al-Harith al-Muzani the mines of al-Qabaliyyah, both the upper and lower part and where the land is suitable for cultivation, and he did not give him anything that rightfully belonged to any Muslim. And the Prophet (ﷺ) wrote a document for him: “In the Name of Allah, the Most Gracious, the Most Merciful. This is what Muhammad, the Messenger of Allah has given to Bilal bin al-Harith al-Muzani: he has given him the mines of al-Qabaliyyah, both the upper and lower part, and where the land is suitable for cultivation, and he has not given him anything that rightfully belongs to any Muslim."