تفسير : ((how) that wherewith) allah's punishment (they were contented) because of the reprieve (naught availeth them) from allah's punishment?
Jalāl al-Dīn al-Maḥallī
تفسير : in what way (mā here is interrogative) would that enjoyment which they were given avail them?, in averting the chastisement or mitigating it? it would be of no avail!