Musannaf Ibn Abi Shaybah 11085 — Buried treasure found by a group

Umar al-Dabbi said: Some people of a tribe at our place, Sabur, were digging the ground when suddenly they came upon a treasure. Their overseer was Muhammad bin Jabir al-Rasibi. He wrote to Adi about it, and Adi wrote to Umar bin Abdul Aziz. Umar bin Abdul Aziz wrote: Collect the one-fifth from it, write a quittance for them, and leave all the rest to them, as it is theirs. (When this letter arrived,) he gave the wealth back to them and collected the one-fifth from it.