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

(1) وَلَا تَهِنُوا وَلَا تَحْزَنُوا وَأَنتُمُ الْأَعْلَوْنَ إِن كُنتُم مُّؤْمِنِينَ

(سورة آل عمران, Aal-i-Imraan, Chapter #3, Verse #139)
(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) وَلَا تَهِنُوا فِي ابْتِغَاءِ الْقَوْمِ ۖ إِن تَكُونُوا تَأْلَمُونَ فَإِنَّهُمْ يَأْلَمُونَ كَمَا تَأْلَمُونَ ۖ وَتَرْجُونَ مِنَ اللَّهِ مَا لَا يَرْجُونَ ۗ وَكَانَ اللَّهُ عَلِيمًا حَكِيمًا

(سورة النساء, An-Nisaa, Chapter #4, Verse #104)
(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)

(3) فَلَا تَهِنُوا وَتَدْعُوا إِلَى السَّلْمِ وَأَنتُمُ الْأَعْلَوْنَ وَاللَّهُ مَعَكُمْ وَلَن يَتِرَكُمْ أَعْمَالَكُمْ

(سورة محمد, Muhammad, Chapter #47, Verse #35)
(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)