“Yet man prays for evil just as he prays for good, for man is ever hasty.” (11) “And We made the night and the day two signs. Then We effaced the sign of the night and made the sign of the day illuminating, so that you may seek bounty from your Lord and know the number of years and the reckoning. And We have set out everything in detail.” (12)
Concerning His statement, Exalted is He, “Yet man prays”: the final waw is omitted in pronunciation because it precedes a silent lam, as in His statement, “We shall call the keepers of Hell” [Surah al-‘Alaq, 18]. It is likewise omitted in writing, though it is not omitted in meaning. Its meaning is that a person invokes evil against his wealth, his children, and himself, saying in anger, “O Allah, curse him and destroy him,” and the like, “just as he prays for good”—that is, just as he calls upon his Lord [for good] (1), asking Him to grant him blessing and well-being. Were Allah to answer his supplication against himself, he would perish; but, out of His bounty, Allah does not answer it. “For man is ever hasty”: that is, hasty in invoking what he dislikes to have answered against him.
A group of exegetes said—and Ibn ‘Abbas said—that this means he is impatient, having no patience in prosperity or adversity.
Concerning His statement, Exalted is He, “And We made the night and the day two signs”: that is, two signs indicating Our existence, Our oneness, and Our power. “Then We effaced the sign of the night”: Ibn ‘Abbas said, “Allah made the light of the sun seventy portions, and likewise the light of the moon. He then effaced sixty-nine portions of the moon’s light and added them to the light of the sun.” (2)
It is related that Allah, Exalted is He, commanded Gabriel, who then passed his wing across the face of the moon three times. Its radiance was thus effaced, while its light remained.
Ibn al-Kawwā’ asked ‘Ali about the darkness visible on the moon. He replied, “It is the trace of the effacement.” (3)
“And made the sign of the day illuminating”: that is, radiant and shining, meaning that one can see by it. Al-Kisā’ī said: “The Arabs say, ‘The day has become sight-giving,’ when it shines such that one can see by it.” “So that you may seek bounty from your Lord and know the number of years and the reckoning”: that is, had Allah left the sun and moon as He created them, night would not be distinguishable from day; the fasting person would not know when to break his fast; nor would the time of pilgrimage, the time when appointed terms fall due, or the time for stillness and rest be known. “And We have set out everything in detail.”