Qur'an, At-Takwir, Surah 81:15-21
I swear by the planets that follow their courses, by the stars that rise and set, by the darkness of night, and by the first light of dawn, that my words are those of an honoured messenger, held in esteem by the Lord who sits on the divine throne and is obeyed in the heavens; I swear that I am worthy of the trust that he has placed in me.