The one hundred and fortieth discourse of the Majjhimanikāya (M.iii.238 ﬀ) taught to Pukkusāti, whom the Buddha met at the house of Bhaggava the potter. It deals with the six elements of earth, water, fire, air, space, and consciousness.
Pukkusāti recognised the Buddha by his teaching and, at the end of the discourse, wished to be ordained. The Buddha asked him to fetch a bowl and robe. On his way to fetch these, Pukkusāti was killed by a mad cow (M.iii.247).
This sutta forms the Suttanta counterpart of the Abhidhamma Vibhaṅga.