Believing in all messengers, but following the Shari’ah of ‘Eesa & Musa

[There is a] question, If a person believes in all the messengers, believes in the meaning of; he knows they are sincere.

So he says; I believe all the messengers are sincere and I believe in Muhammad salla Allahu alayhi wasalam, however I follow the Shari’ah [Laws, Sunnah, teachings, etc] of ‘Eesa [Jesus] ‘alayhi assalam. He stays on the Shari’ah of ‘Eesa or Musa [Mozes], what do we say about him?

What?

Yes, we say about him that he is a kaafir [disbeliever] with the ijmaa’ [consensus] of the Muslims, and believing they are sincere doesn’t benefit him. Until he believes in the prophet of Allah Muhammad salla Allahu ‘alayhi wasalam and follows his Shari’ah [Laws, Sunnah, teachings, etc]

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