English: "You shall eat it, the unclean and the clean..." — Beis Hillel say: One may invite even ordinary Israelites to partake of a firstborn and may feed it to menstruant women. What is the reason? Because it is written "the unclean and the clean shall eat it," and ordinary Israelites all the more so.
On the daf / in context: Once a firstborn has become blemished it loses the restrictions that apply to pure sacrificial meat and may be shared widely.
Type of Learning
Derash on the verse (Bekhoros) — a blemished firstborn may be shared with zarim and niddos.
What Is Learned
A blemished firstborn may be eaten by ordinary Israelites and even by menstruant women.