Abu Huraira reported: It was said, “O Messenger of Allah, pray against the idolaters!” The Messenger of Allah, peace and blessings be upon him, said, “Verily, I was not sent to invoke curses, but rather I was only sent as mercy.”
Source: Ṣaḥīḥ Muslim 2599
Grade: Sahih (authentic) according to Muslim
عَنْ أَبِي هُرَيْرَةَ قَالَ قِيلَ يَا رَسُولَ اللَّهِ ادْعُ عَلَى الْمُشْرِكِينَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِنِّي لَمْ أُبْعَثْ لَعَّانًا وَإِنَّمَا بُعِثْتُ رَحْمَةً
2599 صحيح مسلم كتاب البر والصلة والآداب باب النهي عن لعن الدواب وغيرها