The Messenger of Allah ﷺ used to say in his prayer, after the tashahhud: "The best of word is the word of Allah (SWT) and the best of guidance is the guidance of Muhammad ﷺ."  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَقُولُ فِي صَلاَتِهِ بَعْدَ التَّشَهُّدِ أَحْسَنُ الْكَلاَمِ كَلاَمُ اللَّهِ وَأَحْسَنُ الْهَدْىِ هَدْىُ مُحَمَّدٍ ﷺ