English: Read not “by a fountain” (alei ayin) but “rising above the eye” (olei ayin) — from here [we learn] that the seed of Yosef is not subject to the evil eye.
On the daf / in context: The same protection from ayin hara that was earlier derived from “וידגו לרוב” is reinforced by the reading of this verse.
Type of Learning
Al tikrei that yields a protective teaching about the descendants of Yosef.
What Is Learned
The seed of Yosef is immune to the evil eye; the verse is read as “rising above the eye.”