Fasting 
Bukhari :: Book 3 :: Volume 31 :: Hadith 175
Narrated Umar bin Al-Khattab:
Allah's Apostle said, "When night falls from this side and the day vanishes from this side and the sun sets, then the fasting person should break his fast."
Fasting
Bukhari :: Book 3 :: Volume 31 :: Hadith 175
Narrated Umar bin Al-Khattab:
Allah's Apostle said, "When night falls from this side and the day vanishes from this side and the sun sets, then the fasting person should break his fast."