190إِنَّ في خَلقِ السَّماواتِ وَالأَرضِ وَاختِلافِ اللَّيلِ وَالنَّهارِ لَآياتٍ لِأُولِي الأَلبابِT. B. Irving(XX) In the creation of Heaven and Earth, and the alternation between night and daylight, there are signs for prudent persons