Four monks came to the Buddha and asked him for a topic of meditation. He gave them various topics and they, having retired to various places, all became Arahants: one by understanding the six-
The Buddha related a story of the past where four sons of Brahmadatta, king of Bārāṇasī, having asked their charioteer to show them a kiṃsuka-
When asked to describe the tree, the first likened it to a burnt stump, the second to a banyan tree, the third to a piece of meat, and the fourth to an acacia. The matter was referred to the king, who solved the difficulty.
The king was the Bodhisatta. J.ii.265 f