In Theravāda analysis, gotrabhū is a single moment between the last insight knowledge and the arising of the path. It takes nirvāṇa as its object for the first time and leaves the lineage of ordinary beings for that of the noble ones. It is compared to a man leaping a stream.
Gotrabhū
Change of lineage: the moment of mind that passes from the ordinary person to the noble one, just before the path.
Also: Gotrabhu, change of lineage