Musnad Ahmad 12960 — Musnad of Anas ibn Malik

It is narrated from Hazrat Anas (may Allah be pleased with him) that once the prayer had been established and a man came quickly, his breath was heavy, and upon reaching the row he said, "Alhamdulillah hamdan katheeran tayyiban mubaarakan feeh." After finishing the prayer, the Prophet (peace and blessings be upon him) asked, "Who among you spoke?" He had said a good thing. So that man said, "O Messenger of Allah (peace and blessings be upon him)! I spoke. I was coming quickly and when I reached near the row, I said this sentence." The Prophet (peace and blessings be upon him) said, "I saw twelve angels rushing towards it to see who would raise this sentence first." Then he said, "When any of you comes for prayer, he should walk calmly. Whatever part of the prayer he catches, he should perform, and whatever he misses, he should complete (afterwards)."