The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship
كتاب البر والصلة والآداب
Read the English translation first, with the original Arabic directly underneath.
Whomever Is Cursed, Reviled Or Prayed Against By The Prophet (ﷺ) When He Does Not Deserve That, It Will Be Purification, Reward And Mercy For Him
Abu Huraira reported that a person said:
Allah's Messenger (ﷺ) , I have relatives with whom I try, to have close relationship, but they sever (this relation). I treat them well, but they treat me ill. I am sweet to them but they are harsh towards me. Upon this he (the Prophet) said: If it is so as you say, then you in fact throw hot ashes (upon their faces) and there would always remain with you on behalf of Allah (an Angel to support you) who would keep you dominant over them so long as you adhere to this (path of righteousness).
لَئِنْ كُنْتَ كَمَا قُلْتَ فَكَأَنَّمَا تُسِفُّهُمُ الْمَلَّ وَلاَ يَزَالُ مَعَكَ مِنَ اللَّهِ ظَهِيرٌ عَلَيْهِمْ مَا دُمْتَ عَلَى ذَلِكَ