وَلَئِنْ أَرْسَلْنَا رِيحًا فَرَأَوْهُ مُصْفَرًّا لَّظَلُّوا مِن بَعْدِهِ يَكْفُرُونَ
[30:51]
And if We send a wind and they see it to be yellow, they would after that certainly continue to disbelieve
And if We (but) send a Wind from which they see (their tilth) turn yellow,- behold, they become, thereafter, Ungrateful (Unbelievers)!
And if We sent a wind and they beheld it yellow, they verily would still continue in their disbelief.