Apollonius believed that Egypt and Ethiopia derived their wisdom from India, and that the Naked Philosophers of Ethiopia were emigrants from India. H… - Ram Swarup

It prescribes five daily sacrifices, pancha mahayajnas... The first yajna is Self-knowledge and self-study.. This is called bhrama-yajna... Daily reading of scriptures is its external aspect. The second yajna is pitri-yajna, offerting to one's ancestors... The third is deva-yajna, offering to Gods.... Deva-yajna is in reality an offering to our own higher nature, the secret Godhead within us. The fourth is bhutna-yajna, offering made to elements and all creatures... The last offering is called nri-yajna, which is an offering to men... (p. 242 ff)

Religious harmony is a desirable thing. But it takes two to play the game. Unfortunately such a sentiment holds a low position in Islamic theology.

The Gita tells us that there are four kinds of people who take to God-life. Of them ,the afflicted (arta) are the very first ones. The rest in their order are the seekers of knowledge, the seekerse of truth as it is, and the seekers of wisdom. (p.180)