English: “And Yaakov blessed Pharaoh” — What blessing did he give him? He said to him that the Nile should rise at his feet. And so you find wherever the righteous go, blessing comes at their feet.
On the daf / in context: The midrash identifies the blessing as a practical one for Egypt’s fertility (the Nile’s annual rise) and places it in the broader pattern that the presence of the righteous brings blessing.
Type of Learning
Derash on the verse (midrash / Sifrei) — not a formal named middah of the 13. The unspecified blessing is filled with concrete content drawn from the needs of Egypt and the pattern of the righteous.
What Is Learned
Yaakov blessed Pharaoh that the Nile would rise at his approach; wherever the righteous go, blessing accompanies them.