Tosefta sobre Avodah Zarah 3:12

A convert and a Gentile that inherited from their Gentile father, [the convert] has the right to say to [the Gentile], "You take the idols and I [will take] the utensils," [or] "You the wine and I the fruits" (cf. Dem. 6:10). Onkelos the Convert divided [his Gentile father's inheritance] with his [Gentile] brothers, and was stringent on himself. He cast his portion into the Dead Sea. If they inherited a thermal bath [=מרחץ, see Avodah Zarah 3:4], [the convert] has the right to say to [the Gentile], "Let it be your portion on Shabbat, and my portion on the weekdays."