05
The moon’s mansions
وَالْقَمَرَ قَدَّرْنَاهُ مَنَازِلَ
36:39
وَالْقَمَرَ قَدَّرْنَاهُ مَنَازِلَ حَتَّىٰ عَادَ كَالْعُرْجُونِ الْقَدِيمِ
And the moon — We have determined for it phases, until it returns like the old date-stalk.
10:5
هُوَ الَّذِي جَعَلَ الشَّمْسَ ضِيَاءً وَالْقَمَرَ نُورًا
It is He who made the sun a shining light and the moon a derived light.
The ayah in tafsir
Manazil are the stations the moon is appointed to, night after night, until the old urjun — the dried, curved stalk of the date-cluster — is the picture of the waning crescent. Diya for the sun and nur for the moon: the sun is a lamp that shines of itself in the language of the Arabs; the moon is a light. Ibn Kathir and others kept that distinction without needing a spectrograph.
What later eyes saw
The moon’s light is reflected sunlight. Its phases are geometry: how much of the sunlit face we see. The urjun is an exact visual of the last crescent. A people who farmed dates already held that image. The Book made it a measured qadar, not an accident of the sky.
Where we stop
Nur does not only mean “reflected.” It is light. The pairing with diya is suggestive and was noticed early. We do not turn a lexical nuance into a physics paper.