Parashas Behar · Aliyah 6 · Passuk 25:41
Chabad.org — English translation + Rashi
Torah Temimah cites Sifra / Kiddushin 15a.
English: “He and his children with him.” This teaches that the master is obligated for the food of his children.
Classical derasha (Sifra / Bavli Kiddushin).
When an eved ivri goes free, his children who were supported by the master go with him; the master bears responsibility for their maintenance during the term of service.