مَا نَهَيْتُكُمْ عَنْهُ فَاجْتَنِبُوهُ وَمَا أَمَرْتُكُمْ بِهِ فَافْعَلُوا مِنْهُ مَا اسْتَطَعْتُمْ فَإِنَّمَا أَهْلَكَ الَّذِينَ مِنْ قَبْلِكُمْ كَثْرَةُ مَسَائِلِهِمْ وَاخْتِلَافُهُمْ عَلَى أَنْبِيَائِهِمْ
What I have prohibited for you, avoid it. What I have commanded you, do it as much as you can. Verily, those before you were ruined only due to their excessive questioning and contradicting their prophets.
Ṣaḥīḥ al-Bukhārī 7288, Grade: Muttafaqun Alayhi
The Justification for following the Sunnah | Islam Q and A