Musannaf Ibn Abi Shaybah 31434 — Book of the Remembrance of Allah

Hilal said that Umm al-Darda said: "Whoever recites these words a hundred (100) times in the morning and a hundred times in the evening: 'There is no god but Allah, He is alone, He has no partner, His is the dominion and for Him is the praise, and He has power over all things,' no one will come on the Day of Resurrection with a deed like his, except one who has recited these words as many times or more."