The word(s) "biallayli" appears 7 time(s) in 7 verse(s) in Quran.

(1) Allatheena yunfiqoona amwalahum biallayli waalnnahari sirran waAAalaniyatan falahum ajruhum AAinda rabbihim wala khawfun AAalayhim wala hum yahzanoona

(سورة البقرة, Al-Baqara, Chapter #2, Verse #274)
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(2) Wahuwa allathee yatawaffakum biallayli wayaAAlamu ma jarahtum bialnnahari thumma yabAAathukum feehi liyuqda ajalun musamman thumma ilayhi marjiAAukum thumma yunabbiokum bima kuntum taAAmaloona

(سورة الأنعام, Al-An'aam, Chapter #6, Verse #60)
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(3) Sawaon minkum man asarra alqawla waman jahara bihi waman huwa mustakhfin biallayli wasaribun bialnnahari

(سورة الرعد, Ar-Ra'd, Chapter #13, Verse #10)
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(4) Qul man yaklaokum biallayli waalnnahari mina alrrahmani bal hum AAan thikri rabbihim muAAridoona

(سورة الأنبياء, Al-Anbiyaa, Chapter #21, Verse #42)
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(5) Wamin ayatihi manamukum biallayli waalnnahari waibtighaokum min fadlihi inna fee thalika laayatin liqawmin yasmaAAoona

(سورة الروم, Ar-Room, Chapter #30, Verse #23)
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(6) Wabiallayli afala taAAqiloona

(سورة الصافات, As-Saaffaat, Chapter #37, Verse #138)
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(7) Faini istakbaroo faallatheena AAinda rabbika yusabbihoona lahu biallayli waalnnahari wahum la yasamoona

(سورة فصلت, Fussilat, Chapter #41, Verse #38)
(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)