The Messenger of Allah ﷺ recited the supplication (Qunut) daily for a month at the noon, afternoon, sunset, night and morning prayers. When he said: "Allah listens to him who praises Him" in the last rak'ah, invoking a curse on some clans of Banu Sulaym, Ri'l, Dhakwan and Usayyah, and those who were standing behind him said: Amen. (Using translation from Abū Dāʾūd 1443)
قَنَتَ رَسُولُ اللَّهِ ﷺ شَهْرًا مُتَتَابِعًا فِي الظُّهْرِ وَالْعَصْرِ وَالْمَغْرِبِ وَالْعِشَاءِ وَالصُّبْحِ فِي دُبُرِ كُلِّ صَلَاةٍ إِذَا قَالَ «سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ» صَلَّى الرَّكْعَةَ الْآخِرَةَ يَدْعُو عَلَى حَيٍّ مِنْ بَنِي سُلَيْمٍ عَلَى رِعْلٍ وَذَكْوَانَ وَعُصَيَّةَ وَيُؤَمِّنُ مَنْ خَلْفَهُ وَكَانَ أَرْسَلَ إِلَيْهِمْ يَدْعُوهُمْ إِلَى الْإِسْلَامِ فَقَتَلُوهُمْ قَالَ عِكْرِمَةُ هَذَا مِفْتَاحُ الْقُنُوتِ