Does memorizing the Qur'an benefit its owner if he falls into shirk (associating partners with Allah)?

Question:
Honorable Shaykh, may Allah grant you success, if a person who has memorized the Book of Allah the Exalted has a type of major shirk (associating partners with Allah) or minor shirk, does his memorization benefit him?

Answer:
No, if he has a type of major shirk (associating partners with Allah), his memorization does not benefit him. But if he has a type of minor shirk, his memorization benefits him, though his reward is diminished. Or if he intends by the recitation to gain praise from people, he has no reward for that recitation. The scholars invalidate the deed that is mixed with it, whereas major shirk (associating partners with Allah) invalidates all deeds. Yes.