Leviticus 12:2-4

²'Speak unto the sons of Israel, saying, A woman when she giveth seed, and hath born a male, then she hath been unclean seven days, according to the days of separation for her sickness she is unclean;

³and in the eighth day is the flesh of his foreskin circumcised;

⁴and thirty and three days she doth abide in the blood of her cleansing; against any holy thing she doth not come, and unto the sanctuary she doth not go in, till the fulness of the days of her cleansing.