It is narrated from Hazrat Umm Hani (may Allah be pleased with her) that once the Prophet (peace and blessings be upon him) passed by me, so I said: O Messenger of Allah! I have become old and weak, tell me an action that I can do while sitting? The Prophet (peace and blessings be upon him) said: Say «سبحان الله» a hundred times, for it is equal to freeing a hundred slaves from among the descendants of Ismail; say «الحمدلله» a hundred times, for it is equal to equipping a hundred horses with saddles and reins for the Mujahideen in the way of Allah; and say «الله اكبر» a hundred times, for it is equal to a hundred camels with bridles that have been accepted; and say «لا اله الا الله» a hundred times, for it fills the space between the heavens and the earth, and on that day no one’s deed can surpass this except someone who does the same as you have done.