Hadith 1736

Muhammad bin Juhadah reported from Zubaid, Sa'eed bin 'Abdur-Rahman bin Abza, from his father, who said: "The Messenger of Allah (SAW) used to recite in witr: Glorify the Name of your Lord, the Most High;" and "Say: O you disbelievers!;' and 'Say: He is Allah, (the) One.' And when he had finished praying, he said: Subhanal-Malikil-Quddus (Glory be to the Sovereign, the Most Holy) three times."

أَخْبَرَنَا عِمْرَانُ بْنُ مُوسَى، قَالَ حَدَّثَنَا عَبْدُ الْوَارِثِ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ جُحَادَةَ، عَنْ زُبَيْدٍ، عَنِ ابْنِ أَبْزَى، عَنْ أَبِيهِ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُوتِرُ بِـ ‏<A id="q38" name="q38" href="javascript:openquran(86,1,1)"><c_q38>{‏ سَبِّحِ اسْمَ رَبِّكَ الأَعْلَى ‏}</c_q38></a>‏ وَ ‏<A id="q39" name="q39" href="javascript:openquran(108,1,1)"><c_q39>{‏ قُلْ يَا أَيُّهَا الْكَافِرُونَ ‏}</c_q39></a>‏ وَ ‏<A id="q40" name="q40" href="javascript:openquran(111,1,1)"><c_q40>{‏ قُلْ هُوَ اللَّهُ أَحَدٌ ‏}</c_q40></a>‏ فَإِذَا فَرَغَ مِنَ الصَّلاَةِ قَالَ ‏"‏ سُبْحَانَ الْمَلِكِ الْقُدُّوسِ ‏"‏ ‏.‏ ثَلاَثَ مَرَّاتٍ ‏.‏

Reference: 1117440
In-book reference: Book 20, Hadith 1736
Hadith 1736 - The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day - Sunan an-Nasa'i - Sunnah.com