﴿ وَثَمُودُ وَقَوْمُ لُوطٍۢ وَأَصْحَٰبُ لْـَٔيْكَةِ ۚ أُو۟لَٰٓئِكَ ٱلْأَحْزَابُ ﴾

“and [the tribe of] Thamud, and the people of Lot, and the dwellers of the wooded dales [of Madyan]: they all were leagued together, [as it were, in their unbelief:]”

Please check ayah 38:16 for complete tafsir.