His saying: "Indeed, We sent Noah to his people," up to His saying: "a painful punishment," meaning: agonizing.
قَوْلُهُ: ﴿إِنَّا أَرْسَلْنَا نُوحًا إِلَى قومه﴾ إِلَى قَوْله: ﴿عَذَاب أَلِيم﴾ أَي: موجع