Definition of religion: "the belief in and worship of a superhuman controlling power, especially a personal God or gods."
Definition of atheism: "disbelief or lack of belief in the existence of God or gods."
Atheism has no sort of holy scripture, or rituals of any sort. I just go about my life without participating in religious activities.
Atheism is not the faith that there is no god, it's a lack of belief in a god.