The word(s) "tastakbiroona" appears 3 time(s) in 3 verse(s) in Quran.

(1) Waman athlamu mimmani iftara AAala Allahi kathiban aw qala oohiya ilayya walam yooha ilayhi shayon waman qala saonzilu mithla ma anzala Allahu walaw tara ithi alththalimoona fee ghamarati almawti waalmalaikatu basitoo aydeehim akhrijoo anfusakumu alyawma tujzawna AAathaba alhooni bima kuntum taqooloona AAala Allahi ghayra alhaqqi wakuntum AAan ayatihi tastakbiroona

(سورة الأنعام, Al-An'aam, Chapter #6, Verse #93)
(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) Wanada ashabu alaAArafi rijalan yaAArifoonahum biseemahum qaloo ma aghna AAankum jamAAukum wama kuntum tastakbiroona

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #48)
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(3) Wayawma yuAAradu allatheena kafaroo AAala alnnari athhabtum tayyibatikum fee hayatikumu alddunya waistamtaAAtum biha faalyawma tujzawna AAathaba alhooni bima kuntum tastakbiroona fee alardi bighayri alhaqqi wabima kuntum tafsuqoona

(سورة الأحقاف, Al-Ahqaf, Chapter #46, Verse #20)
(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)