Hadith 5812
Mishkat al-Masabih
Excellent Qualities and Description of the Prophet · His Character and Natural Disposition - Section 1
Arabic
وَعَنْ أَبِي هُرَيْرَةَ قَالَ: قِيلَ: يَا رَسُولَ اللَّهِ ادْعُ عَلَى الْمُشْرِكِينَ. قَالَ: «إِنِّي لَمْ أُبْعَثْ لَعَّانًا وَإِنَّمَا بُعِثْتُ رَحْمَةً» . رَوَاهُ مُسْلِمٌ
English translation
Abu Huraira told that when God's messenger was asked to invoke a curse on the polytheists, he replied, "I was not sent as one given to cursing; I was sent only as a mercy." Muslim transmitted it.