Answer

The person is Bhagwan Neminath (Lord Neminath), the 22nd Tirthankara. Jain tradition says he renounced the world after seeing the suffering of animals meant for his wedding feast. ( neminath.org)

Explanation

This is the famous Neminath episode: when he saw the animals and felt deep compassion, he developed vairagya and gave up the marriage ceremony, becoming a monk. ( neminath.org)

Takeaway

In Jain Dharma, this story teaches that true vairagya arises from compassion and awareness of the suffering in the world. ( neminath.org)