﴿ وَأَصْحَٰبُ ٱلْأَيْكَةِ وَقَوْمُ تُبَّعٍۢ ۚ كُلٌّۭ كَذَّبَ ٱلرُّسُلَ فَحَقَّ وَعِيدِ ﴾

“and the dwellers of the wooded dales [of Madyan], and the people of Tubba: they all gave the lie to the apostles - and thereupon that whereof I had warned [them] came true.”

Please check ayah 50:15 for complete tafsir.