From WikiAhmadiyya, the free encyclopedia on Islam and Ahmadiyyat

Atheism is a lack of belief in God, whereas the very foundation of Islam is based on monotheism: belief in one God.

The Ahmadiyya Muslim Community regularly promotes the need for humankind to recognise its creator and rekindle its relationship with God.  The founder of the Ahmadiyya Muslim Community said that while many atheists may be moral people, only believers can advance to the higher degrees of spirituality:

Mere acquisition of moral qualities does not bestow spiritual life upon a person. A person who denies the  existence of God can yet exhibit good moral qualities, such  as  to  be  humble  of  heart,  to  seek  peace,  to discard evil...

- Hazrat Mirza Ghulam Ahmad, The Philosophy of the Teachings of Islam