سنن ابن ماجه

It was narrated that Anas bin Malik said: “Ramadan began, and the Messenger of Allah (ﷺ) said: ‘This month has come to you, and in it there is a night that is better than a thousand months. Whoever is deprived of it is deprived of all goodness, and no one is deprived of its goodness except one who is truly deprived.’”