ٱلَّذِى خَلَقَ فَسَوَّىٰ
Allazee khalaqa fasawwaa
who created and shaped in due measure,
Each line of this opening runs two verbs joined by fa, the particle for what follows immediately: created and shaped, measured and guided, brought the pasture up and turned it dark. The second verb of each pair completes the first, so nothing in the sequence waits for a later adjustment. That rhythm is laid down first, and the address to whoever is listening comes only afterwards.