Musannaf Ibn Abi Shaybah 8650 — The prostration of thanks

Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) said: I came to the Prophet (peace and blessings be upon him) while he was in prostration. When he raised his head from the prostration, I said: O Messenger of Allah! You prolonged the prostration! He said: "I prostrated in gratitude to my Lord because Allah Almighty has favoured me concerning my Ummah."