Narrated Abu Huraira: Allah's Apostle said, "When the month of Ramadan comes, the gates of Paradise are opened and the gates of the (Hell) Fire are closed, and the devils are chained."
Hadith ReferenceSahih Bukhari / The Book of The Beginning of Creation / Hadith: 3277
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة