He mentioned the morning and evening due to the extension of the shadows at these times, so he made their extension a prostration, so in the morning they shrink back to their origin from which they emerged, out of fear for themselves of being burned, so it is as if we limit themselves to themselves, and in the evening they extend and lengthen with increases from the manifestation of God’s blessings that He has bestowed on them, and the morning and evening are among the ending times. From praying in it, so he removed the ruling on prostration at these times from the ruling on voluntary prayers and made its ruling the ruling on obligatory or voluntary voluntary prayers, so the following in this verse is obligated to prostrate, and he will be rewarded under the heading of one whose report is truthful to his Lord Almighty .