Disrespect Of Baal Mubarak Leads One To Hell

Hazrat Ali رضي الله تعالیٰ عنه states, ‘Once I saw the Holy Prophet صلى الله عليه وسلم holding a strand of his blessed hair in his hand. He صلى الله عليه وسلم then said, ‘Anyone who shows any (even the slightest) disrespect to (even) one strand of my hair, will have Paradise made Haraam upon him.’
[Kanzul Um’mal]

Hazrat Allama Yusuf bin Isma’eel Nabhani رحمۃ الله تعالیٰ علیہ quotes the following statement of Hazrat Imam Fakhruddeen Raazi رحمۃ الله تعالیٰ علیہ : ‘If a person disrespects even one hair of the Holy Prophet صلى الله عليه وسلم, I will declare such a person an infidel.’
[Jawaahir ul Bihar]