إِنَّ أَحْسَنَ الْحَدِيثِ كِتَابُ اللَّهِ وَأَحْسَنَ الْهَدْيِ هَدْيُ مُحَمَّدٍ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ The best word is Allah's book. The best path is Muhammad’s path. Buhari, Adab, 70; 2. Muslim