Al Quranسَنُرِیهِمۡ ءَایَـٰتِنَا فِی ٱلۡـَٔافَاقِ وَفِیۤ أَنفُسِهِمۡ حَتَّىٰ یَتَبَیَّنَ لَهُمۡ أَنَّهُ ٱلۡحَقُّۗ أَوَلَمۡ یَكۡفِ بِرَبِّكَ أَنَّهُۥ عَلَىٰ كُلِّ شَیۡءࣲ شَهِیدٌ
سُورَةُ فُصِّلَتۡ - 53
In time We shall make them fully understand Our messages [through what they perceive] in the utmost horizons [of the universe] and within themselves, so that it will become clear unto them that this [revelation] is indeed the truth. [Still,] is it not enough [for them to know] that thy Sustainer is witness unto everything?
Fussilat - 53