رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1512
The Book of the Prohibited actions
The Prohibition of Backbiting and the Commandment of Guarding one's Tongue
وَعَنْ أَبِي مُوسَى رَضِيَ اللَّهُ عَنْهُ قَالَ: قُلْتُ: يَا رَسُولَ اللَّهِ أي الْمُسْلِمِينَ أَفْضَلُ؟ قَالَ: مَنْ سَلِمَ الْمُسْلِمُونَ مِنْ لِسَانِهِ وَيَدِهِ . ((مُتَّفَقٌ عَلَيْهِ)).
Abu Musa Al-Ash'ari (May Allah be pleased with him) reported: I asked the Messenger of Allah (ﷺ): "Who is the most excellent among the Muslims?" He said, "One from whose tongue and hands the other Muslims are secure." [Al-Bukhari and Muslim].
Riyad as-Salihin, 1512