משנה אויף ויקרא 12:7

If a woman had five doubtful genital discharges or five doubtful births, she needs to bring only one offering, and she may eat sacrifices [immediately], and she is not liable to bring the other [offerings]. If a woman had five certain births, or five certain genital discharges, she brings one offering and may then eat sacrifices [immediately], and she is liable to bring the other offerings. It once happened in Jerusalem that the price of a pair of doves rose to a golden denar. Rabban Shimon ben Gamaliel said: By this sanctuary, I shall not go to sleep tonight before they cost but a [silver] denar! Then he entered the court and taught: if a woman had five certain births or five certain genital discharges she needs to bring only one offering, and she may then eat sacrifices, and she is not liable to bring the other [offerings]. Thereupon the price of a pair of birds stood at a quarter of a [silver] denar each.

A woman who has had several births. If she miscarried a female within eighty days of the birth of a girl, and then she again miscarried a female within eighty days of the previous [miscarriage]; or if she miscarried twins. Rabbi Judah says: she brings an offering for the first and not for the second, for the third again but not for the fourth. The following persons bring an offering of higher or lesser value: One who hears the voice (see Leviticus 5:1); One who has broken the word of his lips (Leviticus 5:4); One who while unclean has entered the sanctuary or [has partaken] of holy things, A woman after childbirth And a metzora. What is the difference between [intercourse] with a female slave and the other forbidden sexual relations? For they are not equivalent in regard to the punishment nor the sacrifice. In the case of all other forbidden sexual relations a hatat is brought, in that of a female slave an asham; In the case of the other forbidden sexual relations a female animal is brought, in that of the female slave a male; In the case of the other forbidden sexual relations man and woman are alike with respect to lashes and the sacrifice; in that of the female slave the man is unlike the woman regarding the lashes, and the woman is unlike the man regarding the sacrifice. In the case of all other forbidden sexual relations sexual contact is punishable as well as consummation, and one is liable for each act of intercourse separately. For in this the case of the female slave is more stringent in that intentional transgression is of the same status as unwitting transgression.