Messenger of Allah ﷺ 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." (Using translation from Bukhārī 3277)
"إِذا دَخَلَ شهرُ رمضانَ فُتِّحتْ أبوابُ الجنةِ، وغُلقتْ أبْوابُ جَهنم، وسُلسِلَتِ الشياطينُ" .