That is, “Woe to you!” The word anna (“that”) is in the accusative because the phrase “Know that Allah...” is understood but omitted.

Al-Khalil said: way is separate from ka-anna, and it expresses amazement, as when you say, “Why, why did you do that?” This is because the people regretted what they had done and said, “Why!” in remorse over what had passed from them. Ka-anna means, “I suppose and surmise that,” as when you say, “It seems that relief has come to you,” meaning, “I suppose and surmise that.”

“He extends provision for whomever He wills among His servants and restricts it”: that is, He grants abundance and constricts.

“Had Allah not bestowed His favor upon us, He would have caused us to be swallowed.” Hafs and Ya'qub recited this in the active voice, while the majority recited it in the passive voice.

“Indeed, the disbelievers do not prosper.”

“That abode of the Hereafter We assign to those who seek neither exaltation in the earth nor corruption. And the final outcome is for the God-fearing. (83)

Whoever comes with a good deed shall have better than it; but whoever comes with an evil deed—those who commit evil deeds shall not be recompensed except according to what they used to do. (84)”