Musannaf Ibn Abi Shaybah

Hazrat Ubaidullah bin Abi Bakr narrates that Hazrat Ziyad al-Namiri came into the presence of Hazrat Anas bin Malik (may Allah be pleased with him) along with several reciters. They were told: Recite. So they raised their voices, and they were people of loud voices. Then Hazrat Anas removed the cloth from his face. And there was a black-colored cloth on his face. Then he said: What is this? The Companions did not do like this. And when he disliked something, he would remove the cloth from his face.