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

(1) قُلْ هَلْ مِن شُرَكَائِكُم مَّن يَهْدِي إِلَى الْحَقِّ ۚ قُلِ اللَّهُ يَهْدِي لِلْحَقِّ ۗ أَفَمَن يَهْدِي إِلَى الْحَقِّ أَحَقُّ أَن يُتَّبَعَ أَمَّن لَّا يَهِدِّي إِلَّا أَن يُهْدَىٰ ۖ فَمَا لَكُمْ كَيْفَ تَحْكُمُونَ

(سورة يونس, Yunus, Chapter #10, Verse #35)
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(2) مَا لَكُمْ كَيْفَ تَحْكُمُونَ

(سورة الصافات, As-Saaffaat, Chapter #37, Verse #154)
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(3) مَا لَكُمْ كَيْفَ تَحْكُمُونَ

(سورة القلم, Al-Qalam, Chapter #68, Verse #36)
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(4) أَمْ لَكُمْ أَيْمَانٌ عَلَيْنَا بَالِغَةٌ إِلَىٰ يَوْمِ الْقِيَامَةِ ۙ إِنَّ لَكُمْ لَمَا تَحْكُمُونَ

(سورة القلم, Al-Qalam, Chapter #68, Verse #39)
(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)