﴿ هُوَ ٱلَّذِى يُرِيكُمُ ٱلْبَرْقَ خَوْفًۭا وَطَمَعًۭا وَيُنشِئُ ٱلسَّحَابَ ٱلثِّقَالَ ﴾

“HE IT IS who displays before you the lightning, to give rise to [both] fear and hope, and calls heavy clouds into being;”

He it is Who shows you the lightning inspiring fear in travellers of thunderbolts and hope for those who are at home of rain; and He produces He creates the clouds that are heavy with rain.