Surah Al-'Ankabut 29:36

وَإِلَىٰ مَدْيَنَ أَخَاهُمْ شُعَيْبًا فَقَالَ يَـٰقَوْمِ ٱعْبُدُوا۟ ٱللَّهَ وَٱرْجُوا۟ ٱلْيَوْمَ ٱلْـَٔاخِرَ وَلَا تَعْثَوْا۟ فِى ٱلْأَرْضِ مُفْسِدِينَ

And to Madyan [We sent] their brother Shuʿayb, and he said, "O my people, worship Allāh and expect the Last Day and do not commit abuse on the earth, spreading corruption."

Translation: Saheeh International

Tafsir

And We sent to Midian their brother Shu‘ayb. He said ‘O my people! Worship God and anticipate the Last Day fear it namely the Day of Resurrection; and do not be degenerate in the earth working corruption’ mufsidīna is a circumstantial qualifier emphasising its operator wa-lā ta‘thaw ‘do not be degenerate’; …

Excerpt from Tafsir al-Jalalayn, commentary on 29:36, via Quran.com. The reader has the full commentary and 9 more tafsirs.