Assalaamu alaykum, Shaykh. I know that I have submitted quite a few questions to this site, but I only have one more question, and if this question gets answered, then the amount of stress that would be removed from my life is huge. My question is very simple. Please, I have searched the net tirelessly for an answer, and I have gone and looked at your different fatwas that you have written, but I still could not find the answer that specifically answers my question:
If I caused a person to commit an act of Kufr (disbelief), for example, by cursing Islam, (while I knew very well that there was a high likelyhood of that person cursing Islam) , would I become a disbeliever? Now, I know that if a person prays in public, for example, and a passerby goes past the Muslim who is praying, and he curses Islam because of that, I know that the Muslim who was praying does not become a disbeliever. Rather, I am talking about someone who caused someone to curse Islam without a need; praying, for example, is a need. For example, if a Muslim is not happy with a non-Muslim and challenges him to a fight, and even though the Muslim knew in his mind that the non-Muslim would most likely curse the beard and so on, he nevertheless went on to challenge him to a fight (for no valid reason). Then if the non-Muslim curses Islam, would the muslim become a disbeliever due to the action of the non-Muslim? Please do not refer me to another fatwa, as I have looked at your fatwas and could not find the answer to my question. I asked a similar question previously and got a reply back saying that it was prohibited to cause a person to curse Islam. I know that, but my question is whether it is Kufr Akbar (major disbelief) or not. The reason for which I am asking the question is that there is a hadith that speaks about a person abusing his parents because he caused another person to abuse them. This hadith, from what I have read, is graded authentic. Please answer ASAP. May Allaah reward you.

All perfect praise be to Allah, The Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad, sallallahu ‘alayhi wa sallam, is His slave and Messenger.

The examples that you have mentioned do not entail that the doer becomes a disbeliever. In fact, such thoughts may be the result of the Waswasah (obsessive satanic whisperings), which are dispraised in Islam. We have examined some of your past questions and noticed that you are fond of this topic. You should know that making a judgment about oneself or others as disbelievers is not a simple matter.

Our advice to you is to strive in repelling these whisperings by ignoring them and seeking refuge with Allah, The Almighty, from the accursed Satan. Moreover, you should recite the reported Thikr (expressions of remembrance of Allah) and Ruqyah (healing through Quranic recitation and supplications) frequently. You should not repeat your questions in this regard; otherwise, you would not survive the stress that you wish to remove. Our experience with the questioners who suffer from satanic whisperings is that when their questions are answered, they give rise to many others, leading to a vicious circle. We implore Allah to safeguard us and you from all evils and harms.

The examples that you mentioned have nothing to do with the hadeeth in reference, which says that the one who causes a sin is himself a sinner, because the person in these examples did permissible acts contrary to the case mentioned in the hadeeth. The man to which the hadeeth refers transgresses against the other man by cursing his parents, which most likely causes the other person to curse the man's parents in retaliation.

Allah knows best.