Hadith 469
Chapter 11: The Number Of Rak'ahs In The Zuhr Prayer While A Resident - كتاب الصلاة
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ الْمُنْكَدِرِ، وَإِبْرَاهِيمَ بْنِ مَيْسَرَةَ، سَمِعَا أَنَسًا، قَالَ صَلَّيْتُ مَعَ النَّبِيِّ صلى الله عليه وسلم الظُّهْرَ بِالْمَدِينَةِ أَرْبَعًا وَبِذِي الْحُلَيْفَةِ الْعَصْرَ رَكْعَتَيْنِ .
It was narrated from Ibn Al-Munkadir and Ibrahim bin Maisarah, that they heard Anas say:
"I prayed Zuhr with the Prophet (ﷺ) in Al-Madinah, four Rak'ahs and 'Asr in Dhul-Hulaifah, two Rak'ahs."
Reference : Sunan an-Nasa'i 469
In-book reference : Book 5, Hadith 22