(Mishnah): If one was Gozel an animal or slaves and they grew old, he pays k'Sha'as ha'Gezeilah;

R. Meir says, regarding slaves, he can say 'yours is in front of you' (for slaves are never considered to be stolen).'

(Gemara - Rav Huna): This is when he was Gozel a calf and it became an ox, but if he was Gozel an ox and it grew old, he says 'yours is in front of you';

(Shmuel): Even if he was Gozel a calf and it became an ox, he says 'yours is in front of you';

(Rav Karna): Even if he was Gozel a calf and it became an ox, and he slaughtered or sold, he pays four or five calves. (Really, for a calf he pays five; for a kid or lamb, he pays four.)

(The father of Shmuel bar Ami, citing Rav Yehudah): The Halachah follows R. Meir.