Powtórzonego Prawa 15:3 Halacha: Mishneh Torah, Positive Mitzvot & Sefer HaChinukh

To count the years of the Jubilee by years and by cycles of seven years, as it is said, “And thou shalt number seven (Sabbaths of years)” (Lev. 25:8).

To exact the debt of an alien, as it is said, “Of a foreigner thou mayest exact it; but that which is thine with thy brother, thine hand shall release” (Deut. 15:3).

To set the mother-bird free when taking the nest, as it is said, “…. but thou shalt in any wise let the dam go and the young take for thyself” (Deut. 22:6-7).