Tafsir of Az-Zukhruf 43:83

فذرهم يخوضوا

So leave them (alone) to speak nonsense, means, in their ignorance and misguidance,

ويلعبوا

and play, (in their world),

حتى يﻼقوا يومهم الذي يوعدون

until they meet the Day of theirs which they have been promised. which is the Day of Resurrection, i.e., then they will come to know what their end and destination will be on that Day. The Uniqueness of the Lord Allah exalted says,