In Jainism, formal prayer and devotion are directed to the Tirthankaras (the liberated teachers) and to the Siddhas. Hanumanji is not a part of Jain worship as a deity to be prayed to for spiritual upliftment or moksha.

There are some folk beliefs in certain regions where Hanuman is seen as a heroic figure or a protective symbol, but this does not align with the core Jain practice of venerating the Tirthankaras and focusing on karmic purification. If you’re studying Jain sources, you’ll find that prayers, hymns, and meditations center on the virtues and teachings of the Tirthankaras rather than on Hindu gods.