Reference for Yevamot 27:8
תא שמע במקומו של רבי אליעזר היו כורתים עצים לעשות פחמים בשבת לעשות ברזל במקומו של ר' יוסי הגלילי היו אוכלים בשר עוף בחלב
Come and hear: In the place of R. Eliezer, wood was cut on the Sabbath wherewith to produce charcoal on which to forge the iron.<span class="x" onmousemove="('comment',' The knife required for the performance of circumcision. The circumcision of a child, his health permitting, must take place on the eighth day of his birth (v. Gen. XVII, 12) even though it happened to fall on a Sabbath when manual labour is prohibited. And since the precept itself supersedes the Sabbath, all its requisites such as the wood and coals (for the preparation of warm water) and the knife may also be performed on the Sabbath. ');"><sup>12</sup></span> In the place of R. Jose the Galilean the flesh of fowl was eaten with milk.<span class="x" onmousemove="('comment',' Though it is forbidden to eat meat, or any dishes made of meat, together with milk or any preparation of milk. R. Jose exempts the flesh of fowl from the general prohibition of the consumption of meat and milk. Shab. 130a, Hul. 116a. ');"><sup>13</sup></span>