Qur'an, Al-Imran, Surah 3:190-191
Behold! In the creation of the heavens and the earth and the alternation of the night and the day are signs for people of understanding, those who remember Allah as they stand and sit, and lie down to rest, who reflect on the creation of the heavens and the earth, and say, "Lord, You did not create this in vain, glory be to You, save us from the doom of the Fire."