﴿ ثُمَّ جَعَلْنَٰكَ عَلَىٰ شَرِيعَةٍۢ مِّنَ ٱلْأَمْرِ فَٱتَّبِعْهَا وَلَا تَتَّبِعْ أَهْوَآءَ ٱلَّذِينَ لَا يَعْلَمُونَ ﴾

“And, finally, [O Muhammad,] We have set thee on a way by which the purpose [of faith] may be fulfilled: so follow thou this [way], and follow not the likes and dislikes of those who do not know [the truth].”

Please check ayah 45:20 for complete tafsir.