مِنْ حُسْنِ إِسْلَامِ الْمَرْءِ تَرْكُهُ مَا لَا يَعْنِيهِ
Transliteration
Min husni islami-l-mar'i tarkuhu ma la ya'nih.
Translation
From the excellence of a person's Islam is leaving what does not concern them.
Narrated by Abu Hurayrah·Jami' at-Tirmidhi 2317 (hasan)·Nawawi's Forty · #12
