Likutei Moharan 23:11/ליקוטי מוהר"ן כ״ג:י״א

111. The following relates to section 4: And this is the concept of mezuzah …. And this is the meaning of, “Shadai (the Almighty) will be your treasure, and money will fly to you”…. This is because Shadai corresponds to the Covenant. Study there. This is the concept of Shadai: “[When God reached the Shabbat of Creation,] He said to His world, ‘Dai! (Enough!)’” (Chagigah 12a). In other words, a person is “happy with his lot.” He says, “Enough!” about what he has and has no desire for more. This corresponds to breaking the desire for money, which is achieved through guarding the brit, as above.