The Prophet ﷺ said, "A man set out to visit a brother of his for the sake of Allah in another village. Allah
stationed an angel along his path. When the man passed by him, the angel asked, 'Where are you headed?'The man replied, 'I am going to see a certain brother of mine.'The angel asked, 'Is he a relative of yours?'The man said, 'No.'The angel asked, 'Is there some favor he has done for you that you wish to repay?'The man said, 'No.'The angel asked, 'Then why are you going to him?'The man replied, 'I love him for the sake of Allah.'The angel said, 'I am a messenger of Allah sent to you, to tell you that Allah loves you just as you love this brother for His sake.'"
حدثنا يزيد أخبرنا حماد بن سلمة عن ثابت البناني عن أبي رافع
عن النبي ﷺ قال خرج رجل يزور أخا له في الله عز وجل في قرية أخرى فأرصد الله عز وجل بمدرجته ملكا فلما مر به قال أين تريد قال أريد فلانا قال لقرابة قال لا قال فلنعمة له عندك تربها قال لا قال فلم تأتيه قال إني أحبه في الله قال فإني رسول الله إليك أنه يحبك بحبك إياه فيه
Its chain of transmission is sahih. It will come again with this same chain at 10608, and it will also come again through the narration of Hammad bin Salama at 9280, 9909, and 10252, and it is found in Jami al-Masanid 7:420 referencing this same passage. Muslim narrated it at 2:280 through Abdul-Ala bin Hammad Narsi, from Hammad bin Salama, with this chain. Here in J and M it appears as "Hammad bin Abu Salama," which is a foolish error. The correct form is confirmed in K and in Jami al-Masanid.Regarding "bi-madrajatiha," the word "daraja" (with fatha on the dal and ra, and a silent unpointed dal between them) means the path along which one travels, that is, walks.Regarding "tarubbuha" (with fatha on the ta, damma on the ra, and a doubled ba with damma), Ibn Athir said it means she preserves it, tends to it, and raises it just as a man raises his child. It is said, "rabba fulanun waladahu, yarubbuhu rabban," and also "rabbabahu" and "rabbahu," all carrying the same meaning.