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

(1) summun bukmun AAumyun fahum la yarjiAAoona

(سورة البقرة, Al-Baqara, Chapter #2, Verse #18)
(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) Wamathalu allatheena kafaroo kamathali allathee yanAAiqu bima la yasmaAAu illa duAAaan wanidaan summun bukmun AAumyun fahum la yaAAqiloona

(سورة البقرة, Al-Baqara, Chapter #2, Verse #171)
(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) Waallatheena kaththaboo biayatina summun wabukmun fee alththulumati man yashai Allahu yudlilhu waman yasha yajAAalhu AAala siratin mustaqeemin

(سورة الأنعام, Al-An'aam, Chapter #6, 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)