Dalil

Mishkat al-Masabih 243

Chapter - Section 2

وَعَنْ مُعَاوِيَةَ قَالَ: إِنَّ النَّبِيَ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَهَى عَنِ الْأُغْلُوطَاتِ. رَوَاهُ أَبُو دَاوُد

Translation

Mu'awiya said that the Prophet forbade the discussion of thorny questions. Abu Dawud transmitted it.

Grades by grader

Ahmad Muhammad ShakirSahih Lighairihigraded on tirmidhi:1082fawazahmed0
Zubair Ali ZaiSoundgraded on tirmidhi:1082fawazahmed0, hadithunlocked, sunnah.com
al-AlbaniSahihgraded on tirmidhi:1082fawazahmed0

Same hadith, other wordings