Musannaf Ibn Abi Shayba 18:393

Abu Bakr narrated to us, he said: Muhammad bin Bakr narrated to us, from Ibn Jurayj, from ‘Ata’, and I said to him: "The breaking of a hand, or a leg, or a collarbone, then it was set and became straight. Is there anything [due] for that?" He said: "There is something for that, but it has not reached me what it is."