It is He who shows you lightening, [causing] fear and aspiration, and generates the heavy clouds.
The Saheeh International Quran Translation
هُوَ ٱلَّذِى يُرِيكُمُ ٱلْبَرْقَ خَوْفًا وَطَمَعًا وَيُنشِئُ ٱلسَّحَابَ ٱلثِّقَالَIt is He who shows you lightening, [causing] fear and aspiration, and generates the heavy clouds.