Reference for Bava Kamma 112:5

ושומר קמא אפטר ליה לגמרי לימא תיהוי תיובתא דרבא דאמר רבא שומר שמסר לשומר חייב

It must therefore mean, instead of a bailee,<span class="x" onmousemove="('comment',' I.e. where the sheep has already been in the hands of a bailee who later transferred it to a shepherd. By declaring the shepherd to be liable it is implied that the bailee will become released from his previous obligations. ');">⁵</span>

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