>>The Prophet (SAW) has warned us:
When I was taken up into heaven, I passed by people who had copper claws tearing at their faces and chests. I asked, 'Who are these O Jibreel?' He replied: 'They those who ate the flesh of people and insulted their honor.
[Ahmad, Abu Dawood]
>>Abu Harayrah reprted that he heard the Messenger (SAW) say:
Indeed a servant may say a word which he doesn't realize and it will make him fall into the fire further than the East and West.
>>The Prophet SAW confirmed:
The Eemaan of Allaah's servant will not be upright until his heart is upright and his heart will not be upright until his tongue is upright.