Sunan an-Nasa'i 1079
سنن النسائي#1079SahihIt was narrated from Anas that:The Messenger of Allah (ﷺ) said the Qunut for one month, supplicating against one of the 'Arab tribes, then he stopped doing that
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 12:51