What is the 'Vessantara Jataka' about?

Nevertheless, upon meticulous analysis by art historians, this sculpture at Sanchi is recognized as a portrayal of a scene from the Vessantara Jataka. This narrative revolves around a benevolent prince who selflessly bestowed all his possessions upon a Brahmana, ultimately residing in the forest with his family. This instance exemplifies the approach of historians who, while scrutinizing sculptures, often discern their meaning by comparing them with textual sources.