﴿ وَإِن كَانَ أَصْحَٰبُ ٱلْأَيْكَةِ لَظَٰلِمِينَ ﴾

“AND THE DWELLERS of the wooded dales [of Madyan, too,] were inveterate evildoers,”

And certainly in has been softened in other words understand it as being innahu the dwellers in the wood a huddle of trees near Midian — these were the people of the prophet Shu‘ayb — were evildoers for denying Shu‘ayb.