Which religion were artifacts found at mohenjo-daro and harappa show that the of early cities was later absorbed?

It's important to be careful with the wording of the question, as the artifacts found at Mohenjo-daro and Harappa don't necessarily "show" that a specific religion was absorbed. Instead, they offer clues to the beliefs and practices of the Indus Valley Civilization.

Here's what we can say:

* The Indus Valley Civilization had a distinct religious system: This system involved a complex iconography, featuring symbols like the Pashupati seal, the Tree of Life, and various animal motifs. It is evident they worshipped deities, likely in association with nature and fertility.

* No direct evidence of absorption by other religions: While we know the Indus Valley Civilization was later absorbed into other cultures (like the Vedic culture), there isn't direct evidence to say that their religion was definitively absorbed by any specific religion.

* Potential influences: Some scholars suggest possible influences of the Indus Valley religion on later religions like Hinduism, Buddhism, and Jainism. However, this is still a topic of debate.

It is incorrect to state that the artifacts "show" the absorption of a specific religion. The evidence is complex and open to interpretation. We can't definitively claim that the Indus Valley religion was absorbed into any particular faith, but its influence on later religious developments is a possibility.