The Messenger of Allah ﷺ said, "Whoever sends one blessing upon me, Allah sends ten blessings upon him, ten sins are erased from him, and he is raised ten degrees in rank."In another narration from him, "Whoever mentions me, let him send blessings upon me, and whoever sends one blessing upon me, Allah sends ten blessings upon him."
قال رسول الله ﷺ: من صلى علي صلاة واحدة صلى الله عليه عشر صلوات، وحطت عنه عشر خطيئات، ورفعت له عشر درجات. وفي رواية عنه: من ذكرني فليصل علي، ومن صلى علي صلاة واحدة صلى الله عليه عشرا.
Nasai (1297) narrated it, and the wording here is his, along with Ahmad (11998, 13754), Bukhari in Adab al-Mufrad (643), and Ibn Hibban graded it sahih (904), and Hakim (1/550), all of them through the route of Yunus bin Abu Ishaq, from Burayd bin Abu Maryam, from Anas bin Malik, who related it. Its chain is hasan because of Yunus bin Abu Ishaq. Hakim said, "This is a hadith sahih in its chain."Abu Yaala (926) narrated it from Azraq bin Ali, from Hassan (that is, Ibn Ibrahim Kirmani), from Yusuf (that is, Ibn Ishaq bin Abu Ishaq), from Abu Ishaq, from Burayd bin Abu Maryam, from Anas bin Malik, who related it with the second wording. This chain is sahih. There has been disagreement over it regarding Abu Ishaq, and Daraqutni, in Ilal (2497), judged correct the narration of Yusuf bin Ishaq mentioned above.