Sunan an Nasai
1070
Sahih+2

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)

SahihAbu Ghuddah
SahihAl-Albani