Translation:

26. And He listens to those who believe and do deeds of righteousness and gives them increase of His Bounty: but for the Unbelievers there is a terrible Penalty.

Notes (Tafseer)

4564. To the prayers of the righteous He listens, and He gives them of His Bounty beyond their deserts. Every time they do a little good, they are increased in their goodness. Every right impulse or aspiration is strengthened and leads to progressive spiritual advancement.