A man or woman who is purified from a running issue, a woman who is purified from having given birth, and a purified leper cannot eat sacred things or enter the Temple until they have brought sacrifices. The sacrifice for a running issue is two birds as a sin-offering and a burnt-offering.¹ That for childbirth is a sheep burnt-offering and a bird sin-offering; but if she cannot afford it, birds for both.² The leper's sacrifice is three sheep as a guilt-offering, sin-offering and burnt-offering; but if he cannot afford it, the last two can be birds.^3,a

Sources:
1. Lev. 15:14-15,29-30	a. 1:1,3
2. Lev. 12:6-8
3. Lev. 14:1-32