In Jain tradition, the Namokar Mantra is not said to have been “found” by one person first. It is considered an eternal, timeless mantra that expresses reverence to the supreme beings of Jain Dharma.

So, traditionally:

• It was not composed by a human.
• It is viewed as anadi — without beginning.
• It is revealed and preserved through the Jain tradition, and recited since the time of the Tirthankars.

If you want, I can also explain:

• who the five salutations in Namokar Mantra are, or
• the meaning of the full mantra in simple words.