Translation:

50. The companions of the fire will call to the companions of the garden; "pour down to us water or anything that Allah doth provide for your sustenance." They will say: "Both these things hath Allah forbidden to those who rejected Him.

Notes (Tafseer)

1028. The Companions of the Fire will thirst for water and not get it, and for sustenance which will not be theirs, while the Companions of the Garden will have the crystal waters of the springs and rivers and they will enjoy the bliss of Allah's Countenance, which will be their supreme nourishment and the fruit of their life of probation and seeking. These things will not be transferable. Cf. also xxxvii. 41-47, 62-67.