Musnad Ahmad 32:770

Abu Kamil narrated to us, Hammad—meaning Ibn Salamah—narrated to us, from Qatadah, and Thabit, and Humayd, from Anas ibn Malik, that a man came and he was out of breath, so he said: "Allah is the Greatest, praise be to Allah, a praise that is abundant, good, and blessed." When the Prophet, peace and blessings of Allah be upon him, finished his prayer, he said: "Which of you spoke the words? For he did not say anything wrong." The man said: "I did, O Messenger of Allah. I came and I was out of breath, so I said them." He, peace and blessings of Allah be upon him, said: "I saw twelve angels rushing to see which of them would raise them up."