Musannaf Ibn Abi Shaybah 36180 — Book of History

Ammar said: We were sitting with Sayyiduna Ibn Abbas (may Allah be pleased with them both) in the shade of a building (a palace) at the funeral of Sayyiduna Zayd bin Thabit (may Allah be pleased with him). He said: Today a great deal of knowledge (a great scholar) has been buried.