إِنَّ اللَّهَ فَرَضَ فَرَائِضَ فَلَا تُضَيِّعُوهَا ، وَحَدَّ حُدُودًا فَلَا تَعْتَدُوهَا ، وَسَكَتَ عَنْ أَشْيَاءَ رَحْمَةً لَكُمْ غَيْرَ نِسْيَانٍ فَلَا تَبْحَثُوا عَنْهَا

Indeed, Allah has made duties obligatory, so do not neglect them; and He has set limits, so do not transgress them; and He has remained silent concerning things as mercy for you, not out of forgetfulness, so do not search them out. — Messenger of Allah, through Abu Tha’laba Al-Khushan, Al-Daraqutni 4/184, Hasan