But if wa-la-in the lām is for oaths We unleash a different wind that damages vegetation and they see it turn yellow they would begin la-zallū is the response to the conditional oath after that that is after its turning yellow to disbelieve to deny the grace of having been given rain.
- 30:5151
وَلَئِنْ أَرْسَلْنَا رِيحًا فَرَأَوْهُ مُصْفَرًّا لَظَلُّوا مِنْ بَعْدِهِ يَكْفُرُونَ
If We send a (blighting) wind and they see (the earth) seared autumnal, they would surely become ungrateful.
- common.revelation-Meccan
- common.hizb : 163