Abu Bakrah (may Allah be pleased with him) reports that a piece of news came to the Prophet (peace and blessings of Allah be upon him), and he was pleased by it, so he fell down in prostration before Allah.
Imam Tirmidhi says: 1- This hadith is hasan ghareeb. 2- We know it only through this chain from the narration of Bukar bin Abdul Aziz. 3- Bukar bin Abdul Aziz bin Abi Bakrah is maqaarib al-hadith. 4- Most of the people of knowledge act upon this; they consider the prostration of gratitude to be valid.
Hadith Referenceسنن ترمذي / كتاب السير عن رسول الله صلى الله عليه وسلم / 1578