[If] one takes a mother bird while on her young — R’ Yehudah says: He incurs the penalty of lashes, and he need not send [her] away. But the Sages say: He must send [her] away, and he does not incur the penalty of lashes. This is the rule: Any negative commandment that has in it a positive commandment, one does not incur the penalty of lashes for its violation.