سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 1070
The Book of The At-Tatbiq (Clasping One's Hands Together)
The Qunut after bowing
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا جَرِيرٌ، عَنْ سُلَيْمَانَ التَّيْمِيِّ، عَنْ أَبِي مِجْلَزٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ قَنَتَ رَسُولُ اللَّهِ صلى الله عليه وسلم شَهْرًا بَعْدَ الرُّكُوعِ يَدْعُو عَلَى رِعْلٍ وَذَكْوَانَ وَعُصَيَّةَ عَصَتِ اللَّهَ وَرَسُولَهُ .
It was narrated that Anas bin Malik said: "The Messenger of Allah (ﷺ) prayed (saying the) Qunut after bowing for a month, supplicating against Ri'l, Dhakwan and 'Usayyah who had disobeyed Allah and His Messenger." (Sahih).
Sunan an-Nasa'i, 1070