﴿ ثُمَّ كَانَ عَٰقِبَةَ ٱلَّذِينَ أَسَٰٓـُٔوا۟ ٱلسُّوٓأَىٰٓ أَن كَذَّبُوا۟ بِـَٔايَٰتِ ٱللَّهِ وَكَانُوا۟ بِهَا يَسْتَهْزِءُونَ ﴾

“And once again: evil is bound to be the end of those who do evil by giving the lie to God’s messages and deriding them.”

Then the consequence for those who committed evil was evil al-sū’ā is the feminine form of al-aswa’ ‘the worst’; it may be read as the predicate of kāna if one reads ‘āqibatu in the nominative; or it is the subject of kāna if read as ‘āqibata in the accusative; and so what is meant is Hell in the former reading or according to the latter reading simply their evil actions because they denied the signs of God the Qur’ān and made a mock of them.