هُوَ الَّذِيۡ يُرِيۡكُمُ الۡبَرۡقَ خَوۡفًا وَّطَمَعًا وَّيُنۡشِئُ السَّحَابَ الثِّقَالَۚ‏

It is He who shows you lightening, [causing] fear and aspiration, and generates the heavy clouds