Source of Law
Muslims are explicitly warned against seeking other than Allah as a source of Law (Shariah).
Qur’an 6:114 Shall I seek other than GOD as a source of law, when He has revealed to you this book fully detailed? Those who received the scripture recognize that it has been revealed from your Lord, truthfully. You shall not harbor any doubt.
Arabic: أَفَغَيْرَ اللّهِ أَبْتَغِي حَكَمًا وَهُوَ الَّذِي أَنَزَلَ إِلَيْكُمُ الْكِتَابَ مُفَصَّلاً وَالَّذِينَ آتَيْنَاهُمُ الْكِتَابَ يَعْلَمُونَ أَنَّهُ مُنَزَّلٌ مِّن رَّبِّكَ