(2) باب الاِقْتِدَاءِ بِسُنَنِ رَسُولِ اللَّهِ صلى الله عليه وسلم
Narrated Abu Huraira and Zaid bin Khalid:
We were with the Prophet (ﷺ) when he said (to two men), "I shall judge between you according to Allah's Book (Laws)."
Reference: Sahih al-Bukhari 7278, 7279
In-book reference: Book 96, Hadith 11
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 9, Book 92, Hadith 383