Ali 'Imran 3:141

وَلِيُمَحِّصَ ٱللَّهُ ٱلَّذِينَ ءَامَنُوا۟ وَيَمْحَقَ ٱلْكَـٰفِرِينَ

Waliyumaḥḥiṣa l-lahu alladhīna āmanū wayamḥaqa l-kāfirīna

And that Allāh may purify the believers [through trials] and destroy the disbelievers.