Sahih Muslim
The Book of Mosques and Places of Prayer — Hadith #1443
Scholarly Consensus: Sahih How we grade
وَحَدَّثَنِي مُحَمَّدُ بْنُ حَاتِمٍ، حَدَّثَنَا بَهْزُ بْنُ أَسَدٍ، حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ، أَخْبَرَنَا أَنَسُ بْنُ سِيرِينَ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَنَتَ شَهْرًا بَعْدَ الرُّكُوعِ فِي صَلاَةِ الْفَجْرِ يَدْعُو عَلَى بَنِي عُصَيَّةَ .
Anas b. Malik reported that the Messenger of Allah (ﷺ) observed Qunut for a month in the dawn prayer after ruku’ and invoked curse upon Bani Usayya.
Hadith Grading
Each grade below reflects one scholar's assessment of the chain of transmission. The grade describes the chain, not the Prophet's words. How we grade
Scholarly Consensus: Sahih