سورة آل عمران

Imam Kazim (peace be upon him): Allah has praised the people of understanding in the best manner and adorned them with the noblest of qualities, saying: إِنَّ فِی خَلْقِ السَّماواتِ وَ الْأَرْضِ وَ اخْتِلافِ اللَّیْلِ وَ النَّهارِ لَآیاتٍ لِأُولِی الْأَلْبابِ [Most surely in the creation of the heavens and the earth and the alternation of the night and the day there are signs for men who understand].

Imam Sadiq (peace be upon him): O Zayd! When you look at the sky, say: O Allah ... place my reflection upon the creation of the heavens and the earth and the alternation of the night and the day! And do not place me among the heedless! And send down upon me blessings from the sky! And open for me a door through which my righteous deeds may ascend to You until they reach You. And forgive my ugly and evil deeds and make them like scattered particles and dust, disintegrated! And open for me the door of relief, joy and mercy, and spread and multiply upon me Your blessings and two portions of Your mercy! And close the door from which misfortune, wrath, and Your lesser and greater punishment rain down! إِنَّ فی خَلْقِ السَّماواتِ وَ الْأَرْضِ وَ اخْتِلافِ اللَّیْلِ وَ النَّهارِ لَآیاتٍ لِأُولِی الْأَلْباب [Indeed, in the creation of the heavens and the earth and the alternation of the night and the day there are signs for men of understanding].

Imam Ali (peace be upon him): When the Messenger of Allah (peace be upon him and his family) rose at night, he would use the miswak; then he would look at the sky and say: إِنَّ فِی خَلْقِ السَّماواتِ وَ الْأَرْضِ ... فَقِنا عَذابَ النّارِ [Most surely in the creation of the heavens and the earth ... so save us from the chastisement of the fire].

Imam Baqir (peace be upon him): Anyone for whom the creation of the heavens and the earth, the succession of night and day, the revolution of the celestial sphere, the sun and the moon, and the many wondrous signs do not indicate that behind all of these there lies a reality greater than them — in the Hereafter he will be blind and more astray, and he will be more blind and more astray with respect to the things he has not seen.