If someone uttered words of disbelief or mocked Islam or disbelieved in pillers of faith or disbelieved in Allah and his attributes and powers can I call him a Kafir/disbeliever/atheist?


If they actually have willingly done what you claim then it is permissible to call them kafir/disbeliever as they have committed Kufr and the word falls true on them. It would be in the first case mentioned in the hadith:

أيما امرئ قال لأخيه: يا كافر، فقد باء بها أحدهما، إن كان كما قال، وإلا رجعت عليه

Any man who says to his brother: "O disbeliever," it will apply to one of them. Either it is as he said, otherwise it will come back to him.


Uttering words of disbelief or mocking does nullify Islam, even if done in jest:

قل أبالله وآياته ورسوله كنتم تستهزئون لا تعتذروا قد كفرتم بعد إيمانكم

Say, "Is it Allah and His verses and His Messenger that you were mocking?" Make no excuse; you have disbelieved after your belief.

Quran 9:65-66

  • The person said"........ like Allah is dead" naujubillah. Can i call this person atheist because the person disbelieved Allah's power? – anonymous Sep 26 '20 at 6:52
  • Yes it could be if he said that intentionally, as that is an insult and denial of Allah. No if it was a slip of the tongue or if the complete sentence had some context which meant something else. – UmH Sep 26 '20 at 6:59
  • It was intentional because it was posted in Facebook and the full post was about insult of Islam. – anonymous Sep 26 '20 at 16:27
  • I didn't call one kafir in front of the person. Do i have any sin? – anonymous Sep 26 '20 at 16:29
  • I have already answered, if he did commit Kufr then there is no sin in calling him Kafir. – UmH Sep 26 '20 at 16:29

Assalamualaikum waramatullahi wabarakatuhu

You are not allowed to call someone kafir because only Allah knows the people that believe and the people that disbelieve. Also by calling someone a kafir can also make you too as a kafir, there is an Hadith that one said

Sahih al-Bukhari 6103 Narrated Abu Huraira:

Allah's Messenger (ﷺ) said, "If a man says to his brother, O Kafir (disbeliever)!' Then surely one of them is such (i.e., a Kafir). "

So please my brother don't call someone a kafir

Wasalamu alaikum


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.