36:39
وَٱلْقَمَرَ قَدَّرْنَـٰهُ مَنَازِلَ حَتَّىٰ عَادَ كَٱلْعُرْجُونِ ٱلْقَدِيمِ
wal-qamara qaddarnāhu manāzila ḥattā ʿāda kal-ʿur'jūni l-qadīmi
We have determined phases for the moon until finally it becomes like an old date-stalk.
And the moon, We have measured for it mansions (to traverse) till it returns like the old dried curved date stalk.