CHAPTER: Doubling (The Reward For) The Remembrance In The Cause Of Allah, The Mighty And Sublime.
Narrated Muadh ibn Jabal: The Messenger of Allah صلی اللہ علیہ وسلم said: (The reward of) prayer, fasting and remembrance of Allah is enhanced seven hundred times over (the reward of) spending in Allah's path.
Doubtful