Musnad Ahmad 724:5

I read to Abd al-Rahman ibn Mahdi: Malik, from Nu'aym ibn 'Abd Allah al-Mujmir, from 'Ali ibn Yahya al-Zuraqi, from his father, from Rifa'ah ibn Rafi' al-Zuraqi, who said: We were praying one day behind the Messenger of Allah, may Allah bless him and grant him peace. When the Messenger of Allah, may Allah bless him and grant him peace, raised his head from the bowing (ruku') and said, "Allah hears those who praise Him," a man behind him said, "Our Lord, to You be the praise, abundant, good, and blessed praise therein." When the Messenger of Allah, may Allah bless him and grant him peace, finished, he said, "Who was the speaker just now?" The man said, "I was, O Messenger of Allah." The Messenger of Allah, may Allah bless him and grant him peace, said, "I saw thirty-some angels rushing to see which of them would write it down first."