Hadithcore
Riyad as-Salihin, 1526

Anas (May Allah be pleased with him) said:

The Messenger of Allah (ﷺ) said, "During the Mi'raj (the Night of Ascension), I saw a group of people who were scratching their chests and faces with their copper nails. I asked, 'Who are these people, O Jibril?' Jibril replied: 'These are the people who ate flesh of others (by backbiting) and trampled people's honour."' <b>[Abu Dawud]</b>.

وعن أنس رضي الله عنه قال‏:‏ قال رسول الله صلى الله عليه وسلم‏:‏ “لما عُرج بي مررت بقوم لهم أظفار من نُحاس يخمشون وجوههم وصدورهم، فقلت‏:‏ من هؤلاء يا جبريل‏؟‏ قال‏:‏ هؤلاء الذين يأكلون لحوم الناس، ويقعون في أعراضهم‏!‏”‏.‏ ‏(‏‏(‏رواه أبو داود‏.‏‏)‏‏)‏

References1 variant
In-Book Reference
Book 17, Hadith 16
Sharh · explanationclick to expand
<b>Guidance from the Hadiths:</b><br> 1) The Hadith warns against backbiting, being one of the grave major sins, and one of the causes of destruction for its doer in the worldly life and the Hereafter.<br> 2) It is prohibited to speak about other Muslims in a way that they do not like, even if what is said is true about them, for it is considered backbiting. It is allowable under the Shariah in some cases only.<br> 3) The Muslim’s life, property, and honor are as inviolable in the sight of Allah as are the sacred town, the sacred month, and the sacred day.<br> 4) Belittling the value of the worldly life and everything in it if compared to the pleasure of Allah Almighty.<br> 5) Mentioning the punishment of backbiters on the Day of Judgment; they will torture themselves with their own hands because they allowed their fellow Muslims to be backbitten, so they will reap what they sowed.