Merits of the Month of Ramaḍān
Faḍāʾil al-Ashhur al-Thalātha|Volume 1|Book 3|Chapter 1
وبهذا الإسناد، قال: قال أبو جعفر الباقر (عليه السلام): من أحيي ليلة القدر غفرت له ذنوبه ولو كانت عدد نجوم السماء ومثاقيل الجبال ومكاييل البحار.
And with the same chain of transmission, it is reported that Abū Jaʿfar al-Bāqir عليه السلام said: “Whoever revives the Night of Power shall have his sins forgiven, even if their number were like the stars in the sky, the mass of the mountains, and the depths of the seas.”