واخرج البخاري في الادب عن انس ومالك بن اوس بن الحدثان‏.‏ ان النبي صلى الله عليه وسلم قال ‏"‏ان جبريل عليه السلام جاءني فقال‏:‏ من صلى عليك واحدة صلى الله عليه عشرا، ورفع له عشر درجات‏"‏‏.‏

It was reported by Mālik ibn Aws , “Surely the Prophet  said:

Jibrīl came to me and said, "He who gives prayers on you once, Allāh sends prayers on him ten times and raises him ten levels."

[Imam al-Bukhārī relates it in his Adab with a chain up to Anas .]