Reference for Chullin 29:3

אלא אמר רב אשי

But perhaps it might be suggested that in the latter case the law is exceptional since [the lamp] has been put away by the hand of man!<span class="x" onmousemove="('comment',' The mukzeh in this case is brought about by the definite act of man, that is, when he lights the lamp; whereas in our Mishnah the mukzeh comes of itself with the commencement of the Sabbath. In this latter case it is suggested that the mukzeh is not so strict, and if by some means it comes about that the animal is fit for eating it should be permitted.');">³</span>

Beit Yosef