The purification ritual of the afflicted individual reaches its climax as he transitions from total isolation back into society. The physical actions performed during this process serve as powerful symbols of removing the affliction, cleansing the body, and freeing the soul. The priest begins by sprinkling a mixture of spring water and the blood of a slaughtered bird onto the individual [אבן עזרא, ביאור שטיינזלץ]. The primary approach among commentators is that this sprinkling is done on the back of the person's hand, though some suggest it is placed on the forehead. Choosing the back of the hand rather than the palm symbolizes a complete detachment and release from the illness, as the palm typically represents grasping and holding on [רלב״ג].
At this stage in the ritual, the individual is cleansed only from the disease itself. He still carries a level of impurity and must undergo a seven-day waiting period outside his home [אור החיים]. The requirement of exactly seven sprinklings corresponds to the seven sins known to cause this affliction [קיצור בעל הטורים]. This specific number also serves to distinguish the process from the laws of corpse impurity, ensuring the two distinct rituals are not confused. The afflicted person does not require sprinkling on the third and seventh days like one who came in contact with a corpse, and conversely, corpse impurity cannot be resolved with seven consecutive sprinklings [אור החיים, תורה תמימה, מלבי״ם, העמק דבר, אדרת אליהו].
Following the sprinkling, the priest formally pronounces the individual pure [ביאור שטיינזלץ, חזקוני]. This declaration effectively releases him from the previous obligations of mourning his condition, such as tearing his garments and letting his hair grow wild [ספורנו]. From a legal perspective, the core of the purification process relies strictly on actions performed directly upon the person's body, such as the sprinkling, shaving, and washing. These steps are absolutely essential; if they are omitted, the purification is invalid. In contrast, peripheral actions like washing garments or releasing the bird do not halt the overall process if they are somehow missed [תורה תמימה, מלבי״ם, אדרת אליהו, רד״צ הופמן]. Nevertheless, the sprinkling alone does not achieve total purity; it is merely one necessary link in a larger chain of cleansing actions [ביאור יש״ר].
The priest then releases the live bird, an act carrying deep symbolic weight. The soaring bird represents the disease itself departing and flying away from the individual [קיצור בעל הטורים, חזקוני]. Just as the afflicted person sat alone like an isolated bird, he is now entirely free to return to society, much like a bird returning to its flock [חזקוני]. Furthermore, the live bird carries the impurity and associated sins far away from human settlement, functioning similarly to the scapegoat sent into the wilderness on the Day of Atonement [רבנו בחיי, שפתי כהן]. This release also hints at the human soul being freed from strict divine judgment after enduring a period of suffering [שפתי כהן]. Legally, commentators agree that the released bird is permissible to eat. The Torah would not command the release of a forbidden bird, as it might become a stumbling block for an unsuspecting hunter who traps and eats it by mistake. If the released bird happens to return to the priest, he is obligated to send it away again, even a hundred times [תורה תמימה, רש״ר הירש].
The bird is specifically sent toward an open, cultivated agricultural area. This location represents a place of seed and life, serving as a middle ground between the populated city and the desolate wilderness [בכור שור, אילת השחר]. It is not sent to the sea or to a total wasteland. On a practical level, directing the bird to an unpopulated open space distances the contagious elements of the disease from the community [רבנו בחיי, אבן עזרא]. Symbolically, it demonstrates an escape and departure from the domain of impure forces [שפתי כהן]. The requirement is fully met the moment the bird reaches the edge of the field; even if it does not remain there, the act is considered entirely complete [מלבי״ם, אילת השחר].