" إِذَا دَخَلَ شَهْرُ رَمَضَانَ فُتِّحَتْ أَبْوَابُ الْجَنَّةِ وَغُلِّقَتْ أَبْوَابُ النَّارِ وَصُفِّدَتِ الشَّيَاطِينُ "
It was narrated from Abu Hurairah that the Messenger of Allah said: "When the month of Ramadan begins, the gates of Paradise are opened and the gates of Hell are shut, and the devils are fettered."