From WikiAhmadiyya, the free encyclopedia on Islam and Ahmadiyyat

While many mainstream sects of Buddhism today deny the existence of God, the founder of the Ahmadiyya Muslim Community held the view that Buddha himself was a monotheist:

Contrary to this general trend of Western scholars, a solitary voice in India was raised by Hazrat Mirza Ghulam Ahmadas of Qadian (1835–1908), who presented a diametrically opposed view. He maintained that Buddhaas had firm belief in the existence of God who Himself had raised him as His messenger with a specific mission to perform.

- Hazrat Mirza Tahir Ahmad, Revelation, Rationality, Knowledge and Truth

The fourth Caliph of the Ahmadiyya Muslim Community, Hazrat Mirza Tahir Ahmad, argues in his book Revelation, Rationality, Knowledge and Truththat there is evidence in the earliest sources of Buddhism for the belief in God.