Answer

In Jain tradition, Kuberdatt is associated with the story of Sthulibhadra.

The sister of Kuberdatt was Kosha, also known as Rupakosha.

Explanation

Rupakosha was a famous courtesan connected with the life-story of Acharya Sthulibhadra. In the traditional Jain narrative, Sthulibhadra renounced worldly life and became a great Jain monk, while Rupakosha is remembered in relation to his strong detachment and spiritual discipline.

Takeaway

The story highlights the Jain ideal of overcoming attachment, desire, and worldly temptation through firm self-control and spiritual awareness.