"When the month of Ramadan begins, the gates of Paradise are opened and the gates of Hell are shut, and the devils are fettered." (Using translation from Nasāʾī 2097)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «إِذَا دَخَلَ شَهْرُ رَمَضَانَ فُتِّحَتْ أَبْوَابُ الْجَنَّةِ وَغُلِّقَتْ أَبْوَابُ النَّارِ وَصُفِّدَتِ الشَّيَاطِينُ»  

When there comes the month of Ramadan, the gates of mercy are opened, and the gates of Hell are locked and the devils are chained, (Using translation from Muslim 1079a)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «إِذَا دَخَلَ رَمَضَانُ فُتِّحَتْ أَبْوَابُ الْجَنَّةِ وَغُلِّقَتْ أَبْوَابُ النَّارِ وَصُفِّدَتِ الشَّيَاطِينُ»