ויקרא, פרק י״ד, פסוק כ״ב

The purification process for someone recovering from a severe skin disease is deeply sensitive to their financial reality. Instead of demanding expensive sheep, the guidelines allow a person of limited means to achieve atonement through a much more modest offering of two birds, such as turtledoves or young pigeons, based entirely on what they can afford. One bird serves as a sin offering and the other as a burnt offering [ביאור שטיינזלץ]. Turtledoves are named for their unique movement, as they crouch close to the ground before leaping and flying upward with great force [הכתב והקבלה].

Between the two types of birds, there is a distinct economic hierarchy. Turtledoves are offered as mature adults, making them more expensive, while pigeons are offered while still young. Consequently, an ordinary poor person brings turtledoves, while only the most destitute individuals bring young pigeons [פירושי רד״צ הופמן]. Because of this distinction, if a person has the financial ability to afford the slightly more expensive turtledoves, they should not settle for the cheaper pigeons [ביאור יש״ר, נתינה לגר]. The requirement to bring what one can afford is judged exactly at the moment the birds are brought, regardless of any financial shifts that may have occurred since the initial guilt offering. If a poor person suddenly gains wealth during the process, they must bring the standard offering of a wealthy person. Conversely, if a wealthy person loses their fortune, they are permitted to bring the modest offering [מלבי״ם].

The guidelines explicitly stress the exact quantity of two birds. Since speaking of birds in the plural already implies a pair, emphasizing the specific number prevents a logical misunderstanding. Without it, one might mistakenly compare this individual to others in need of atonement, such as a poor mother after childbirth or someone who became impure in the Temple, and conclude that four birds are required. The precise quantity ensures the requirement is strictly limited to two [מלבי״ם, אילת השחר]. Furthermore, the details describing the two birds point to them being a unified, complete pair, establishing that both must be selected from the exact same species [מלבי״ם, אילת השחר].

There are differing views regarding when each bird is assigned its specific role. Some suggest that the priest determines which bird will be the sin offering and which will be the burnt offering at the actual time of the sacrifice [ביאור יש״ר]. Others maintain that the person bringing the offering designates their respective roles earlier, at the moment of purchase [צפנת פענח]. Ultimately, even though the sin offering comes first in both its dedication and its actual sacrifice, the burnt offering remains the primary focus when it comes to the specific selection and designation from the pair [העמק דבר].