Musannaf Ibn Abi Shaybah 22993 — Lost property: what is to be done

Rufay' (may Allah have mercy on him) said: I found ten dinars. I came to Sayyiduna Ibn Abbas (may Allah be pleased with them both) and asked him about them. He (may Allah be pleased with him) said: Announce them at a raised place for one year. If no one is found, give them in charity. Then if their owner comes, he has the choice: he may take the reward of the charity, or take compensation for his loss.