امت کی مضبوطی

Fatima came to the Prophet (ﷺ) asking for a servant. He said, "May I inform you of something better than
that? When you go to bed, recite "Subhan Allah' thirty three times, 'Al hamduli l-lah' thirty three
times, and 'Allahu Akbar' thirty four times. `Ali added, 'I have never failed to recite it ever since."
Somebody asked, "Even on the night of the battle of Siffin?" He said, "Even on the night of the battle of Siffin."