Brahāchatta Jātaka (No.336)
Once Brahmadatta, king of Bārāṇasī, captured Kosala with its king, and brought all its treasures to Bārāṇasī, where he buried them in iron pots in the royal park. Chatta, the Kosala king’s son, escaped, and became an ascetic near Takkasilā with a following of five hundred. Later he came with his followers to Bārāṇasī, won the heart of the king by his demeanour, and lived in the royal park. There, by means of a spell, he discovered the buried treasure, and taking his followers into his confidence, took the treasure to Sāvatthi and made the city impregnable. When Brahmadatta discovered his loss and its results, he was disconsolate, but was comforted by his minister, who was the Bodhisatta, and who pointed out to him that Chatta had but taken what belonged to him.
The story was told in reference to a knavish monk, identified with Chatta. J.iii.115 ff.