TheAuthenticBase
Assalaamu 'alaykum!
Salman (May Allah be pleased with him) reported: I heard the Messenger of Allah (ﷺ) as saying,
"Observing Ribat in the way of Allah for a day and a night is far better than observing Saum (fasting) for a whole month and standing in Salat (prayer) in all its nights. If a person dies (while performing this duty), he will go on receiving his reward for his meritorious deeds perpetually, and he will be saved from Al- Fattan."
[Saheeh Muslim]
"Observing Ribat in the way of Allah for a day and a night is far better than observing Saum (fasting) for a whole month and standing in Salat (prayer) in all its nights. If a person dies (while performing this duty), he will go on receiving his reward for his meritorious deeds perpetually, and he will be saved from Al- Fattan."
[Saheeh Muslim]