Leviticus 14:21

If, however, the person is poor and cannot afford these offerings, he is to take one male lamb as a guilt offering to be waved to make atonement for him, along with a tenth of an ephah of fine flour mixed with olive oil for a grain offering, a log of olive oil,

And if he be poor, and cannot get so much; then he shall take one lamb for a trespass offering to be waved, to make an atonement for him, and one tenth deal of fine flour mingled with oil for a meat offering, and a log of oil;