משנה אויף במדבר 30:2

Gentiles are not subject [to the laws] of naziriteship. Women and slaves are subject [to the laws] of naziriteship. The nazirite vow is more stringent in the case of women than in the case of slaves, for a man can compel his slave [to break his vow] but he cannot compel his wife [to do so]. [The nazirite vow] is more stringent in the case of slaves than in the case of women, for he can void the vows of his wife, but he cannot void the vows of his slaves. If he voids his wife’s [vow], it is void for ever, but if he voids his slave’s vow, [if] the slave becomes free he must complete his naziriteship. When [the slave] passes from [his master's] presence: Rabbi Meir says: he may not drink [wine]. Rabbi Yose says: he may drink [wine].