Reference for Bekhorot 75:5
וא"ל רב תחליפא
refers to the borer and [the removal of] what stopped up [the hole].<span class="x" onmousemove="('comment',' The borer being narrow below and wide at the top, some scraping away of the hole is necessary in order that it may enter and come out freely. This would therefore make the hole larger than a sela' and, therefore, Beth Shammai and Beth Hillel would differ in the extent of the diminution required in the case of the skull. Incidentally this would solve R. Oshaiah's query above.');"><sup>4</sup></span>
Explore reference for Bekhorot 75:5. In-depth commentary and analysis from classical Jewish sources.