لَأُعَذِّبَنَّهُ عَذَابًا شَدِيدًا أَوْ لَأَذْبَحَنَّهُ أَوْ لَيَأْتِيَنِّي بِسُلْطَانٍ مُّبِينٍ
‘I will punish him with a severe punishment, or I will behead him, unless he brings me a credible excuse.’
Agha Ali Puya Commentary
Commentary on Quran 27:21
[Pooya/Ali Commentary 27:21] (see commentary for verse 20)