Answer

In Jain tradition, the future 22nd Tirthankar of the next Chovisi is known as Shri Devchandra Prabhu.

Regarding “which soul he is”, this is not something I can state with certainty unless it is clearly established in accepted Jain tradition.

So the accurate answer is:

Shri Devchandra Prabhu is traditionally named as the future 22nd Tirthankar, but I cannot reliably identify his present or past soul identity unless supported by established Jain scriptures/tradition.

Explanation

Jain Dharma describes cycles of time in which 24 Tirthankars appear in each half-cycle. The present set is called the current Chovisi, beginning with Shri Rushabhdev Bhagwan and ending with Shri Mahavir Swami.

In future time cycles, another set of 24 Tirthankars will appear. Among them, Devchandra Prabhu is mentioned as the future 22nd Tirthankar.

However, details about the exact soul’s current identity or previous birth must be handled very carefully. Jain tradition gives such information only where it is scripturally established.

Spiritual Understanding

The important point is not merely knowing the past identity of a future Tirthankar, but understanding that a Tirthankar soul reaches that state through:

• Perfect faith
• Perfect conduct
• Supreme compassion
• Destruction of karmas
• Establishment of the Jain Sangh for liberation

Takeaway

Shri Devchandra Prabhu is revered as the future 22nd Tirthankar, but his exact soul identity should not be claimed unless clearly verified within Jain tradition.