[If] a bull aims for another bull and strikes a woman, causing her to abort, [its owner] is exempt from [paying] the value of the fetus. But [if] a person aims for another person and strikes a woman, causing her to abort, he pays the value of the fetus.  How does one pay the value of the fetus? We appraise how much the woman was worth before giving birth and how much she is worth since she gave birth. Said Rabban Shimon ben Gamliel: If so, when the woman gives birth, she increases in value! Ra-ther, we appraise how much the fetus was worth, and he gives [it] to the husband; if she has no husband, he gives [it] to his heirs. [If] she had been a slave who was freed, or a proselyte, he is exempt.