Musannaf Ibn Abi Shayba 17:1288

Ghundar narrated to us, from Shu'bah, from Ya'la ibn 'Ata, who said: I heard Nafi' ibn 'Asim narrating from 'Abdullah ibn 'Amr, who said: "The one who reminds others of his favors (al-mannan) shall not enter the enclosure of holiness (hadhirat al-quds)."