When the night covered him over with darkness he saw a star. He said: "This is my lord." But when it set, he said: "I like not those that set."

Allah is the Light of the heavens and the earth. The parable of His Light is as (if there were) a niche and within it a lamp, the lamp is in glass, the glass as it were a brilliant star, lit from a blessed tree, an olive, neither of the east (i.e. neither it gets sun-rays only in the morning) nor of the west (i.e. nor it gets sun-rays only in the afternoon, but it is exposed to the sun all day long), whose oil would almost glow forth (of itself), though no fire touched it. Light upon Light! Allah guides to His Light whom He wills. And Allah sets forth parables for mankind, and Allah is All-Knower of everything.

By the star when it goes down, (or vanishes).

And that He (Allah) is the Lord of Sirius (the star which the pagan Arabs used to worship);

By the heaven, and At-Tariq (the night-comer, i.e. the bright star);

(It is) the star of piercing brightness;