The 5th Tirthankara in Jainism is Lord Sumatinath.

Story of Lord Sumatinath:

Sumatinath Bhagwan was born to King Megha and Queen Mangala in the city of Ayodhya, in the Ikshvaku dynasty. From birth, he showed signs of great wisdom and compassion. According to Jain tradition, he was destined to become a Tirthankara due to his accumulation of immense punya (merit) in past lives.

Early Life: Sumatinath was a bright and virtuous prince, known for his knowledge, kind nature, and sense of justice. He often resolved disputes with fairness and encouraged people to practice ahimsa (non-violence) and truthfulness.

Renunciation: After many years as a wise and just ruler, Prince Sumatinath realized the impermanence of worldly pleasures and decided to renounce his kingdom and royal life in search of spiritual liberation (moksha). He became an ascetic, practicing deep meditation and strict self-control.

Keval Jnana (Omniscience): After years of intense spiritual practices, Sumatinath attained Keval Jnana, the perfect knowledge, under a Priyangu tree. With this enlightenment, he became a Tirthankara—a spiritual teacher who shows others the path to liberation.

Preaching: As a Tirthankara, Lord Sumatinath established the fourfold sangha (monks, nuns, laymen, and laywomen) and preached the core Jain principles of ahimsa (non-violence), satya (truth), asteya (non-stealing), brahmacharya (celibacy/chastity), and aparigraha (non-attachment).

Nirvana: Sumatinath Bhagwan attained nirvana (liberation from the cycle of birth and death) at Sammed Shikharji, a holy Jain pilgrimage site.

Symbol: His symbol or emblem is the goose (hamsa).

Significance: Lord Sumatinath’s life exemplifies the Jain ideals of renunciation, non-violence, and the pursuit of spiritual knowledge. He is revered by Jains for guiding countless souls towards the path of liberation.

References:

• Jain Tirthankar Charitra Katha
• Kalpa Sūtra
• "Jainism: An Introduction" by Jeffery D. Long