Hadith #547
Arabic Text
حَدَّثَنَا إِسْحَاقُ بْنُ عِيسَى حَدَّثَنَا شَرِيكٌ عَنْ أَبِي إِسْحَاقَ عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنِ ابْنِ عَبَّاسٍ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَ يُوتِرُ بِثَلَاثٍ بِسَبِّحِ اسْمَ رَبِّكَ الْأَعْلَى وَقُلْ يَا أَيُّهَا الْكَافِرُونَ وَقُلْ هُوَ اللَّهُ أَحَدٌ
English Translation
Ishaq ibn 'Isa narrated to us, Sharik narrated to us, from Abu Ishaq, from Sa'id ibn Jubayr, from Ibn 'Abbas (رضي الله عنهما) that the Prophet ﷺ used to pray Witr with three rak'ahs: reciting 'Glorify the Name of your Lord, the Most High' [al-A'la], 'Say: O disbelievers' [al-Kafirun], and 'Say: He is Allah, the One' [al-Ikhlas].
Quran References
Reference: Musnad Ahmad, Book 9, Hadith 547
Sunnah.com ref: Musnad Ahmad 2585
Islam.wiki ID: IWH-38975