English of Core Text: “And He afflicted…” — this teaches that plagues come for the sin of uncovered arayot.
On the daf / in context: The sugya lists causes of nega’im. The plague on Pharaoh’s household is cited as evidence that sexual transgression (or its near occasion) brings physical affliction.
Type of Learning
Custom
What Is Learned
The affliction of Pharaoh’s house is the classic proof-text that nega’im can answer to arayot.