وَعَنْ أَبِي صِرْمَةَ رضى الله عنه
قَالَ: قَالَ رَسُولُ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ -«مَنْ ضَارَّ مُسْلِمًا ضَارَّهُ اَللَّهُ، وَمَنْ شَاقَّ مُسَلِّمًا شَقَّ اَللَّهُ عَلَيْهِ»
“He who causes harm to a Muslim will be harmed by Allah, and he who acts in a hostile manner against a Muslim, will be punished in the same way by Allah.” Related by Abu Dawud and At-Tirmidhi who graded it to be Hasan (good).
Bulugh al-Maram 1699, Book 16, The Comprehensive Book, Hadith 65. 1 min read