Musannaf Ibn Abi Shayba 3:751

Hashim narrated to us, he said: Abu Harun informed us, he said: I prayed in Medina and I was preceded by some of the prayer. When the Imam gave the salutation, I stood up to complete what I had been preceded by. A man who was next to me pulled me, then said: "It would have been appropriate for you not to stand until he turns." He said: So I met Abu Sa'id and mentioned that to him, and it was as if he did not dislike what I had done, or a word similar to it.