What is the reward for whoever says, "There is no god but Allah alone, without partner; to Him belongs all sovereignty and praise, and He is over all things competent," one hundred times a day?

Whoever says "None has the right to be worshipped except Allah, alone, without partner, to Him belongs all sovereignty and praise, and He is over all things competent" one hundred times in a day, it will be for him like freeing ten slaves, and one hundred good deeds will be written for him, and one hundred bad deeds will be wiped away from him, and it will be a protection for him from Satan that day until evening, and no one will surpass him except one who does more than that. And whoever says "Glory be to Allah and praise be to Him" one hundred times in a day, his sins will be forgiven, even if they were like the foam of the sea.