﴿ يَوْمَ لَا يُغْنِى مَوْلًى عَن مَّوْلًۭى شَيْـًۭٔا وَلَا هُمْ يُنصَرُونَ ﴾

“the Day when no friend shall be of the least avail to his friend, and when none shall be succoured”

the day when a friend will not avail a friend on account of kinship or friendship that is to say the day when he will not be able to ward off from the other anything of the chastisement nor will they be helped — nor will they be protected from it yawma ‘the day’ is a substitution for yawma’l-fasl ‘the Day of Decision’