Reference for Gittin 102:4
קטן מידי מששא אית ביה והתנן אין נשבעין על טענת חרש שוטה וקטן
— By 'minor' R. Eliezer means here a grown-up, and the reason why he calls him 'minor' is because in respect of the affairs of his father he is no better than a minor. If that is the case, why does he say, 'on account of his own plea'? It is the plea of someone else? — He means, the plea of someone else and his own admission. But all charges can be called 'the plea of someone else and his own admission'? — The truth is that they [R. Eliezer and the Rabbis] differ over the point raised by Rabbah; for Rabbah said: Why did the Torah lay down that one who admits part of the charge against him should take an oath [that he is not liable for the rest]?<span class="x" onmousemove="('comment',' V. Ex. XXII, 10. ');"><sup>4</sup></span>