The Ruling on One Who sacrifices to Jinns

Question:

What is the ruling on one who grew up in his country without knowing anything except prayer and the five pillars of Islam and who implements them, but who sacrifices to the Jinn and calls upon them in times of need, without knowing that the Islamic law forbids it. Is he excused because of his ignorance or not? And may it be said to him: "You are a Mushrik" before the matter is made clear to him?

Answer:

It is an obligation upon those who are familiar with the knowledge of Tawhid to make clear to him that sacrificing to other than Allah, such as the Jinn, is major Shirk and takes him out of the fold of Islam. Likewise, supplicating to them to fulfill his needs is an act of major Shirk which also takes him out of the fold of Islam. This is because both of these are acts of worship which should be performed purely for Allah Alone, and directing them to other than Allah is an act of major Shirk. Allah, the Most High says:
Say (O Muhammad): "Verily, my prayer, my sacrifice, my living and my dying are for Allah, the Lord of the 'Alamin (mankind, jinns and all that exists). He has no partner, and of this I have been commanded, and I am the first of the Muslims." Say: "Shall I seek a Lord other than Allah, while He is the Lord of all things?"

And He says:
And invoke not besides Allah any that will neither profit you nor hurt you, for if you did so, you would surely be one of the Zalimun (polytheists and wrongdoers). And if Allah touches you with hurt, there is none who can remove it but He; and if He intends any good for you, there is none who can repel His Favor.

And He says:
"Therefore, turn in prayer to your Lord and sacrifice (to Him only)

And the Prophet said:
"Allah's curse is upon the one who sacrifices to other than Allah.

If he should insist upon sacrificing to the Jinn and supplicating them in times of need, he will be a Mushrik, guilty of major Shirk and there will be no excuse for him because the proof from the Book (of Allah) and the Sunnah has been established against him. It will be said to him: "You are a disbeliever, Mushrik, guilty of major Shirk."

Source:
Fatawa Islamiyah, Vol. 1 Pages 115-116-117