Sunan An-Nasa'i

It was narrated from Az-Zuhri, from Abu Salamah, from Abu Hurairah that:the Prophet used to encourage praying Qiyam Al-Lail in Ramadan, but not forcibly. And he said: ""When Ramadan begins, the gates of Paradise are opened and the gates of Hell are close, and the devils are chained up."" Ibn Al-Mubarak narrated it in Mursal from: