The Holy Quran

وَمَا كُنتَ بِجَانِبِ الطُّورِ إِذْ نَادَيْنَا وَلَكِن رَّحْمَةً مِّن رَّبِّكَ لِتُنذِرَ قَوْماً مَّا أَتَاهُم مِّن نَّذِيرٍ مِّن قَبْلِكَ لَعَلَّهُمْ يَتَذَكَّرُونَ

And thou wast not beside the Mount when We did call; but (the knowledge of it is) a mercy from thy Lord that thou mayest warn a folk unto whom no warner came before thee, that haply they may give heed.