The ruling on calling for what is called “dialogue between religions” or “unity of religions”

Question:
Honorable Shaykh! We have heard a fatwa that the unity of religions is disbelief, and now we have heard of dialogue between religions. What is your opinion? Are they the same, or do they differ?

Answer:
If by dialogue between religions one means comparing religions, establishing the truth, and refuting falsehood, then there is nothing wrong with that. Establishing the truth and demolishing falsehood through dialogue and argument is permissible, provided the truth is made clear and the falsehood is refuted. However, if by dialogue between religions one means the unity of religions and their closeness, and it is said that they are all heavenly religions, then this is invalid. There is no religion except the religion of Islam alone, which abrogated the previous religions that came before it. After the sending of Muhammad (peace and blessings be upon him), there is no religion on the face of the earth except the religion of Islam that Muhammad (peace and blessings be upon him) brought. Anything other than that is invalid, whether Judaism, Christianity, or anything else.
Whoever says that they are all the same is a disbeliever, because he has mixed disbelief with faith and has not distinguished between them. Allah the Exalted knows best, and may Allah send prayers and peace upon our Prophet Muhammad.