The word(s) "thunoobana" appears 4 time(s) in 4 verse(s) in Quran.

(1) Allatheena yaqooloona rabbana innana amanna faighfir lana thunoobana waqina AAathaba alnnari

(سورة آل عمران, Aal-i-Imraan, Chapter #3, Verse #16)
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(2) Wama kana qawlahum illa an qaloo rabbana ighfir lana thunoobana waisrafana fee amrina wathabbit aqdamana waonsurna AAala alqawmi alkafireena

(سورة آل عمران, Aal-i-Imraan, Chapter #3, Verse #147)
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(3) Rabbana innana samiAAna munadiyan yunadee lileemani an aminoo birabbikum faamanna rabbana faighfir lana thunoobana wakaffir AAanna sayyiatina watawaffana maAAa alabrari

(سورة آل عمران, Aal-i-Imraan, Chapter #3, Verse #193)
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(4) Qaloo ya abana istaghfir lana thunoobana inna kunna khatieena

(سورة يوسف, Yusuf, Chapter #12, Verse #97)
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