DO THE BEST ACCORDING TO YOUR ABILITY H 157 "Do not ask me for other than that I mention to you. Those who were before you were ruined by asking many questions and then differing with their Prophets. When I forbid something to you keep away from it altogether. When I prescribe something for you carry it out according to your ability." R 157 Bukhari and Muslim with a chain up to Abu Hurairah who related that the Prophet, praise and peace be upon him, said this.
156- وَأَما الأحاديث : فالأول : عن أبي هريرةَ رضي الله عنه ، عن النَّبيّ صلى الله عليه وآله وسلم ، قَالَ : "دَعُونِي مَا تَرَكْتُكُمْ ، إِنَّمَا أهْلَكَ مَنْ كَانَ قَبْلَكُمْ كَثْرَةُ سُؤالِهِمْ واخْتِلافُهُمْ عَلَى أنْبيَائِهِمْ ، فَإِذَا نَهَيْتُكُمْ عَنْ شَيْء فَاجْتَنِبُوهُ ، وَإِذَا أمَرْتُكُمْ بأمْرٍ فَأْتُوا مِنْهُ مَا اسْتَطَعْتُمْ" مُتَّفَقٌ عَلَيهِ .