27. That is, they worship their Lord instead of enjoying sensuous pleasures at night. They are not like the worldworshipers, who seek entertainments in music and dancing, drinking and merry-making, in the night in order to get relief from the day’s fatigue and labor and toil. Instead, when they are free from their day’s work and duties, they devote themselves to the adoration of their Lord, spend their nights in His remembrance, tremble out of fear of Him, and pin all their hopes on Him. “Who forsake their beds” does not mean that they do not sleep at all at night, but that they spend a part of the night in Allah’s worship.
28. In the original, rizq means lawful provisions. Unlawful provisions have nowhere been called rizq by Allah. The verse therefore means: They spend from whatever little or much of pure provisions We have given to them; they do not overspend and do not grab unlawful wealth in order to meet their expenses.