There is this person on YouTube named Murtaza Khan; he goes around insulting other shaykhs and calling them kafir. What do you think of him and is he right or wrong in what he does and says? JazakAllah
I haven’t heard him, however, I will quote the following Hadith.
عن نافع عن ابن عمر أن النبى -صلى الله عليه وسلم- قال « إذا اكفر الرجل أخاه فقد باء بها أحدهما »
Sahih Muslim: 224
‘When a person calls his Muslim brother kafir, then surely one of them returns with it (the kufr)’. (Muslim shareef)
Therefore, if the other person is not a kafir the speaker becomes one. He should be very careful.
Don’t listen to such people.