Atheists claim that they don't believe in the existence of any God, the onus is on the believer to prove the existence of what they believe in.
Their claim itself is false because atheists do believe in non-existence of a true God, the onus is on the believer to prove the non-existence of what they believe in.
Allahï·» practically proved His existence through his neutral creatures in the 21st century, now is there any atheist in the world who can practically challenge the Army of Allahï·» in any court of the world to disprove and refute them all by bringing his/her own neutral creatures from this physical world if atheism is a true religion against Islam the Religion of Allahï·»?