The final stage in processing the High Priest's sin offering involves removing the remainder of the animal after its internal parts have been offered on the altar. The rest of the bull is transported outside the Temple area to be completely incinerated. This act of burning is not merely a method of waste disposal, but constitutes an essential and formal part of the sacrificial service [רד"צ הופמן]. Unlike a standard burnt offering, which is carefully flayed and divided into separate parts, this bull must be transported outward entirely whole [חזקוני, תורה תמימה, ביאור יש"ר]. Furthermore, because the instructions do not explicitly require a priest to perform this specific task, the removal and burning may be carried out by an ordinary Israelite [רלב"ג].
The destination for this procedure is located far beyond the immediate sacred precincts. The primary approach among commentators is that the bull must be taken outside of three distinct boundaries. During the Israelites' time in the desert, this meant traveling past the camp of the Divine Presence, the Levite camp, and the general Israelite camp. Later, when the Temple stood in Jerusalem, it required taking the offering beyond the Temple courtyard, the Temple Mount, and finally outside the city walls of Jerusalem entirely. Even though the destination is outside the city limits, it must be a designated, pure location. This specific requirement ensures the animal is not brought to impure areas that naturally exist outside a city, such as cemeteries or disposal sites for infected stones [רש"י, גור אריה].
The designated pure location is the ash dump, a specific site where priests routinely emptied the accumulated ashes from the Temple altar [ברכת אשר, ביאור שטיינזלץ]. The terminology used for this site implies a sloped area where the ashes would naturally pour and scatter, contrasting with the careful, gentle placement of ashes required inside the Temple [מלבי"ם]. If this site ever became impure, it had to be ritually purified before the bull could be burned there [אדרת אליהו, מלבי"ם].
The burning process itself carries specific regulations regarding the materials used. On one hand, the requirements for fuel are lenient. Unlike the altar, which required specially prepared wood, this fire can be fueled by any combustible material, including straw, stubble, or twigs [רלב"ג, תורה תמימה]. On the other hand, the method of destruction is strictly limited to actual fire, prohibiting the use of chemical disintegrants like boiling lime or hot plaster [תורה תמימה, ביאור יש"ר].
The procedure must take place at this specific ash dump regardless of whether there are actually any ashes present at the time [רש"י, מזרחי]. The act is legally considered a valid burning only once the fire has taken hold of the majority of the animal [תורה תמימה, מלבי"ם], and it must be consumed so thoroughly that the bull itself becomes an indistinguishable part of the ash dump [העמק דבר].
Beyond these technical procedures, this highly visible act carries a profound educational message. Transporting and burning the High Priest's sacrifice in a public space outside the city serves as a powerful lesson in humility and repentance. By witnessing this public display, the people learn that no one should ever feel ashamed to admit a mistake and repent. When onlookers see that even the High Priest himself has unintentionally sinned, openly confessed, and brought a sacrifice to atone, it encourages absolute honesty and spiritual accountability for everyone [הטור הארוך, קיצור בעל הטורים].