Sahih al-Bukhari, Volume 8, Book 73, Hadith 120 (USC-MSA) ⓘ
Narrated Tariq: `Abdullah said, "The best talk is Allah's Book (Qur'an), and the best guidance is the guidance of Muhammad."
حَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا شُعْبَةُ، عَنْ مُخَارِقٍ، سَمِعْتُ طَارِقًا، قَالَ قَالَ عَبْدُ اللَّهِ إِنَّ أَحْسَنَ الْحَدِيثِ كِتَابُ اللَّهِ، وَأَحْسَنَ الْهَدْىِ هَدْىُ مُحَمَّدٍ صلى الله عليه وسلم.
also referenced under: Book 78, Hadith 125 (In-Book) & Hadith 6098 (DarusSalam)