﴿ هَٰٓأَنتُمْ هَٰٓؤُلَآءِ جَٰدَلْتُمْ عَنْهُمْ فِى ٱلْحَيَوٰةِ ٱلدُّنْيَا فَمَن يُجَٰدِلُ ٱللَّهَ عَنْهُمْ يَوْمَ ٱلْقِيَٰمَةِ أَم مَّن يَكُونُ عَلَيْهِمْ وَكِيلًۭا ﴾

“Oh, you might well argue in their behalf in the life of this world: but who will argue in their behalf with God on the Day of Resurrection, or who will be their defender?”

Ah! There you are addressing Tu‘ma’s clan you have contested you have disputed on their behalf that is to say on behalf of Tu‘ma and his men a variant reading has ‘anhu ‘on his behalf’ in the life of this world; but who will contest against God on their behalf on the Day of Resurrection if He were to punish them or who will be a guardian for them and take charge of their affair or defend them? In other words no one will do such a thing.