Translation:

57. But those who believe and do deeds of righteousness We shall soon admit to gardens with rivers flowing beneath their eternal home: therein shall they have companions pure and holy: We shall admit them to shades cool and ever deepening.

Notes (Tafseer)

578. Cf. ii. 25 and n. 44.

579. The Garden is contrasted with the Fire: the shade is contrasted with the roasting, Evil grows with what it feeds on. So goodness and felicity grow with their practice.