Hadith 4839
وَعَنْ عَلِيِّ بْنِ الْحُسَيْنِ رَضِيَ اللَّهُ عَنْهُمَا قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مِنْ حُسْنِ إِسْلَامِ الْمَرْءِ تَرْكُهُ مَا لَا يَعْنِيهِ» . رَوَاهُ مَالك وَأحمد
Ali bin Husain (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "It is from the excellence of a man's Islam that he leaves what does not concern him." Its chain is weak. Narrated by Malik and Ahmad.