رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1513
The Book of the Prohibited actions
The Prohibition of Backbiting and the Commandment of Guarding one's Tongue
وَعَنْ سَهْلِ بْنِ سَعْدٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: مَنْ يَضْمَنْ لِي مَا بَيْنَ لَحْيَيْهِ، وَمَا بَيْنَ رِجْلَيْهِ أَضْمَنْ لَهُ الْجَنَّةَ ((مُتَّفَقٌ عَلَيْهِ)).
Sahl bin Sa'd (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said, "Whosoever gives me a guarantee to safeguard what is between his jaws and what is between his legs, I shall guarantee him Jannah." [Al-Bukhari].
Riyad as-Salihin, 1513