Hadithcore
Sahih al-Bukhari, 6098
sahih

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.‏

References2 variants
In-Book Reference
Book 78, Hadith 125
USC-MSA web (English) reference
Vol. 8, Book 73, Hadith 120 (deprecated numbering scheme)