وَالْقَمَرِ إِذَا تَلَاهَا
and i swear by the moon as it follows it (the sun).
Talaa = to follow. (tilaawa = to read, since the reader follows the lines on the page.)
talaaHa = follows Her (the sun).
The moon is given the subservient position to the sun, as it (talaa) follows the sun.
Ash Shawkani:– When the moon becomes complete – it follows the sun. i.e. It is reflecting its light off the sun.
[between 9mins – 11mins]
al Farraa’ said: – talaaha – takes from it. The moon takes from the light of the sun. It is in a subservient position.
So this was a view of the salaf too. With the moon being in the subservient position to the sun, and borrowing its light too.