The word(s) "تزكى" appears in 5 verse(s) in Quran.

(1) جَنَّاتُ عَدْنٍ تَجْرِي مِن تَحْتِهَا الْأَنْهَارُ خَالِدِينَ فِيهَا ۚ وَذَ‌ٰلِكَ جَزَاءُ مَن تَزَكَّىٰ

(سورة طه, Taa-Haa, Chapter #20, Verse #76)
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(2) وَلَا تَزِرُ وَازِرَةٌ وِزْرَ أُخْرَىٰ ۚ وَإِن تَدْعُ مُثْقَلَةٌ إِلَىٰ حِمْلِهَا لَا يُحْمَلْ مِنْهُ شَيْءٌ وَلَوْ كَانَ ذَا قُرْبَىٰ ۗ إِنَّمَا تُنذِرُ الَّذِينَ يَخْشَوْنَ رَبَّهُم بِالْغَيْبِ وَأَقَامُوا الصَّلَاةَ ۚ وَمَن تَزَكَّىٰ فَإِنَّمَا يَتَزَكَّىٰ لِنَفْسِهِ ۚ وَإِلَى اللَّهِ الْمَصِيرُ

(سورة فاطر, Faatir, Chapter #35, Verse #18)
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(3) فَقُلْ هَل لَّكَ إِلَىٰ أَن تَزَكَّىٰ

(سورة النازعات, An-Naazi'aat, Chapter #79, Verse #18)
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(4) قَدْ أَفْلَحَ مَن تَزَكَّىٰ

(سورة الأعلى, Al-A'laa, Chapter #87, Verse #14)
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(5) الَّذِي يُؤْتِي مَالَهُ يَتَزَكَّىٰ

(سورة الليل, Al-Lail, Chapter #92, Verse #18)
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