Question:
What is the ruling on those who believe in the divinity of Sayyidina Ali (may Allah be pleased with him)?
Answer:
Making someone other than Allah a deity is major shirk, and the one who commits it is a disbeliever, regardless of who they are. Giving Sayyidina Ali (may Allah be pleased with him) the status of divinity or considering him a deity is shirk with Allah, which expels one from Islam.
❀ Allah Almighty says:
﴿إِنَّ الَّذِينَ تَدْعُونَ مِنْ دُونِ اللَّهِ عِبَادٌ أَمْثَالُكُمْ فَادْعُوهُمْ فَلْيَسْتَجِيبُوا لَكُمْ إِنْ كُنْتُمْ صَادِقِينَ﴾
“Those whom you call upon besides Allah are but servants like yourselves; call upon them, and let them respond to you if you should be among the truthful.”
❀ Furthermore, the command of Allah Almighty is:
﴿قُلِ ادْعُوا الَّذِينَ زَعَمْتُمْ مِنْ دُونِهِ فَلَا يَمْلِكُونَ كَشْفَ الضُّرِّ عَنْكُمْ وَلَا تَحْوِيلًا﴾
“Say, ‘Those whom you call upon besides Allah do not possess the power to remove your distress or to bring it upon you.'”
❀ The divine command is:
﴿وَلَا تَدْعُ مَعَ اللَّهِ إِلَٰهًا آخَرَ ۘ لَا إِلَٰهَ إِلَّا هُوَ﴾
“Do not call upon anyone besides Allah; there is no deity except Him.”