And likewise Moses said to him:

“Would you be willing to purify yourself, and let me guide you to your Lord, so that you may fear Him?”

Thus Moses brought the two together because they necessarily accompany one another.

Concerning the blind man, He said:

“How do you know? Perhaps he may purify himself, or take heed, and the reminder would benefit him.”

He thus mentioned benefiting from the reminder, just as He said:

“And remind, for the reminder benefits the believers.”

Benefit is of two kinds: receiving blessings and averting punishment. Averting punishment is itself a benefit, even if no other benefit accompanies it. Receiving benefits is itself a benefit, even when accompanied by fear of punishment; and having both is also a benefit. Thus benefit encompasses all three, and all three are attained through reminders, as the Most High said:

“And remind, for the reminder benefits the believers.”

And He said:

“How do you know? Perhaps he may purify himself, or take heed, and the reminder would benefit him.”

As for mentioning purification alongside taking heed, this parallels His mentioning fear alongside taking heed in the account of Pharaoh.

Purification means faith and righteous deeds through which a person’s soul becomes pure, as He said in this surah:

“Successful indeed is the one who purifies himself, remembers the name of his Lord, and prays.”

And He said:

“Successful indeed is the one who purifies it, and a failure is the one who corrupts it.”