[Quran 56:76] [Quran 20:114] Most Exalted is GOD, the only true King. Do not rush into uttering the Quran before it is revealed to you, and say, "***My* Lord, increase my knowledge."**
So, those who follow conjecture (hadiths / Sunnah) are not sincere according to the Quran.
Peace submitmj
This is your own opinion or interpretation of ayat. This ayah seems that it's addressing the Prophet[saw].