Levítico 14:7

7 E sobre aquele que há de purificar-se da lepra espargirá sete vezes; então o declarará por limpo, e soltará a ave viva sobre a face do campo.

7 Seven times he shall sprinkle the one to be cleansed of the defiling disease, and then pronounce them clean. After that, he is to release the live bird in the open fields.