Al-Mukhtasar
وَٱلْقَمَرَ قَدَّرْنَـٰهُ مَنَازِلَ حَتَّىٰ عَادَ كَٱلْعُرْجُونِ ٱلْقَدِيمِ ﴿٣٩﴾
A sign for them indicating His Oneness, (may He be glorified), is this moon for which I have determined phases each night. It begins small then becomes big and then small again until it becomes similar to a twisted, old date stalk, in it appearing as thin, curved, yellow and old.