Reference for Pesachim 65:5
והא רב פפא הוא דאמר דאבא שאול תרתי בעי אלא ש"מ הדר ביה
Mar the son of Rabina said, This is what he<span class="x" onmousemove="('comment',' The Tanna of the cited teaching.');"><sup>8</sup></span> means: No: if you say thus of other precepts - where the unintentional is not treated as intentional, for if he intended cutting what was detached but cut what is attached, he is not culpable;<span class="x" onmousemove="('comment',' This refers to the Sabbath, when one must not cut or pluck produce growing in the soil ('attached') . In the present case he is not liable to a sin-offering, which is only due when a man sins in ignorance, i.e., where he intended to do what he did, but did not know that it was forbidden.');"><sup>9</sup></span> will you say [the same] in the case of trespass, where if he intended to warn himself with wool shearings of hullin but warmed himself with the wool shearings of a burnt-offering he is liable to a trespass-offering?