30:51
وَلَئِنْ اَرْسَلْنَا رٖیحًا فَرَاَوْهُ مُصْفَرًّا لَظَلُّوا مِنْ بَعْدِهٖ یَكْفُرُونَ
Walain arsalna reehan faraawhu musfarran lathalloo min baAAdihi yakfuroona
Translations
But if We should send a [bad] wind and they saw [their crops] turned yellow, they would remain thereafter disbelievers
Saheeh International
And if We sent a wind and they beheld it yellow, they verily would still continue in their disbelief
Marmaduke Pickthall