The word(s) "tubba" appears 2 time(s) in 2 verse(s) in Quran in Mohsin Khan translation.

(1) Are they better or the people of tubba' and those before them? We destroyed them because they were indeed Mujrimun (disbelievers, polytheists, sinners, criminals).

(سورة الدخان, Ad-Dukhaan, Chapter #44, Verse #37)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(2) And the Dwellers of the Wood, and the people of tubba'. Everyone of them denied (their) Messengers, so My Threat took effect.

(سورة ق, Qaaf, Chapter #50, Verse #14)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)