Midrasz do Wyjścia 3:21

“She said: ‘These six measures of barley he gave me, as he said to me: Do not go empty-handed to your mother-in-law” (Ruth 3:17).
“She said: These six measures of barley he gave me…” Rabbi Alexandri said: Everywhere that Israel entered, they did not emerge empty-handed. In the looting of Egypt they did not emerge empty-handed, in the looting of Siḥon and Og they did not emerge empty-handed, in the looting of the thirty-one kings they did not emerge empty-handed. “Empty-handed” is stated regarding Egypt, as it is stated: “It will be when you depart, you will not depart empty-handed” (Exodus 3:21); [“empty-handed”] is stated regarding the festival pilgrims: “They shall not appear before Me empty-handed” (Exodus 23:15); and “empty-handed” is stated regarding the righteous, as it is stated: “As he said to me: Do not go empty-handed to your mother-in-law.” “Empty-handed” that is stated regarding the righteous is not like “empty-handed” that is stated regarding Egypt, but rather, like “empty-handed” that is stated regarding the festival pilgrims, as we learned there: The burnt offering of appearance [must be worth at least] two silver coins and the festival peace offering [must be worth at least] one silver ma’a (Mishna Ḥagiga 1:2).²³¹This is a relatively small amount, as the main point is to bring an offering of some kind. Similarly, what Boaz sent with Ruth to Naomi was not very expensive, but was an indication of honor and respect (Etz Yosef).

When Moses came to his house he went into the garden of Jethro's house, and saw the rod and read the letters which were upon it, and he put forth his hand and took it. Jethro watched || Moses, and said: This one in the future will redeem Israel from Egypt. Therefore he gave him Zipporah his daughter to wife, as it is said, "And Moses was content to dwell with the man; and he gave Moses Zipporah, his daughter" (Ex. 2:21).