When a person of limited means seeks to correct a wrong, the requirement adjusts to their financial reality, allowing them to bring two birds instead of a larger animal. One bird serves as a sin offering, while the other is designated as a burnt offering. The addition of the burnt offering is necessary because a bird sin offering, unlike an animal sin offering, does not have specific parts that are burned on the altar. Therefore, a second bird must accompany it so that an entire offering can be completely consumed on the altar [שטיינזלץ].
This second bird must be prepared according to established procedures. The primary approach among commentators is that this refers to the standard rules for a voluntary bird burnt offering detailed earlier in the laws of sacrifices. This includes specific physical actions like removing the head, draining the blood, and burning it on the altar [רש״י, ביאור יש״ר, שפתי חכמים, שטיינזלץ, רש״ר הירש]. However, some scholars note that a specific reminder to follow the law seems unnecessary, as standard procedures would naturally apply [תורה תמימה, מלבי״ם, גור אריה]. Consequently, Talmudic traditions understand this directive as a way to teach additional rules by comparing this sacrifice to others. One approach links it to the standard animal sin offering brought by a wealthier person, teaching that the bird must be purchased with ordinary, non-sacred funds, processed during daylight hours, and handled specifically with the priest's right hand [אדרת אליהו, מלבי״ם, גור אריה]. Another perspective connects it to the bird sin offering prepared right before it, teaching the specific method for severing the bird's neck [תורה תמימה, מלבי״ם]. Despite these deeper traditions, [רש״י] deliberately maintains the simple, straightforward explanation, as the complex comparisons stray too far from a direct, practical reading [מזרחי, גור אריה, ברטנורא].
Following the preparation, the priest makes atonement for the specific sin committed. The requirement to atone for the exact offense clarifies a crucial point. Because this sacrifice covers various wrongs of differing severities, one might mistakenly assume that the financial concession of bringing birds only applies to minor infractions. It might seem that severe sins—such as defiling sacred spaces, which carry harsh spiritual penalties—would still demand a costly animal. Instead, the poor person is permitted to bring birds for any offense that requires this type of sacrifice, regardless of how severe it is [אור החיים].
Ultimately, the person is promised forgiveness, revealing a subtle but vital distinction between atonement and true pardon. The physical removal of the offense is achieved through the sacrifice and the priest's actions. Yet, absolute forgiveness cannot be granted by any human being; it remains entirely in the hands of God in heaven [רבנו בחיי].