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:
Sunan an-Nasa'i Book 22, Hadith 15
← Previous Hadith " There has come to you Ramadan in which the gates of Paradise are opened, the gates of the fire are closed and the devils are chained up." (Sahih) Abu 'Abdur-Rahman said: this narration is a mistake.

Sunan an-Nasa'i Book 22, Hadith 14 Next Hadith → "When Ramadan begins, the gates of mercy are opened and the gates of Hall are closed, and the devils are chained up."

Sunan an-Nasa'i Book 22, Hadith 16