“They intend to put out the light of Allah with their mouths; but Allah will complete His light, however much disbelievers may be averse”
Mohammed bin Fuzail said, I asked Imam Kazim (as) about the verse, “They intend to put out the light of Allah with their mouths.” Imam (as) replied, (It means) they want to extinguish the Wilayat (mastership) of Ameerul Momeneen (as) with their mouths.
I asked, What does this part of the verse mean, “But Allah will perfect His Light”
Imam (as) replied, (It means) Allah will complete the Imamate because (in another verse) Allah says, “So believe in Allah and His Messenger and the light We have sent down” (Chapter 64 verse 8). “The light” refers to the Imam.
I asked, What does this verse mean, “He it is who has sent His Messenger with the guidance and the religion of truth” (Chapter 61 verse 9)?
Imam (as) replied, (It means) Allah is the One who ordered His Messenger to (announce) the Wilayat of his successor. “The religion of truth” is the Wilayat.
I asked, Is this derived from the outer meaning of the verse?
Imam (as) replied, Yes. This is derived from the outer meaning of the verse, but it is also mentioned in the inner meaning of other (verses). (Al Kafi, volume 1, page 432)