Sunan an-Nasa'i, Volume 1, Book 6, Hadith 497 (DarusSalam) ⓘ
It was narrated from Az-Zuhri he said: "Anas told me that the Messenger of Allah went out when the sun had passed its zenith, and led them in Zuhr prayer."
أَخْبَرَنَا كَثِيرُ بْنُ عُبَيْدٍ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ حَرْبٍ، عَنِ الزُّبَيْدِيِّ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي أَنَسٌ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم خَرَجَ حِينَ زَاغَتِ الشَّمْسُ فَصَلَّى بِهِمْ صَلاَةَ الظُّهْرِ .
also referenced under: Book 6, Hadith 500 (In-Book)