Mahabharata 1.143.2

1.143.2

yudhiṣṭhira uvāca |
kruddho'pi puruṣavyāghra bhīma mā sma striyaṃ vadhīḥ |
śarīraguptyābhyadhikaṃ dharmaṃ gopaya pāṇḍava || 2 ||

"Vaisampayana said, 'Bhima, beholding Hidimva following them, addressed her, saying, 'Rakshasas revenge themselves on their enemies by adopting deceptions that are incapable of being penetrated. Therefore, O Hidimva, go thou the way on which thy brother hath gone.' Then Yudhishthira beholding Bhima in rage, said, 'O Bhima, O tiger among men, however enraged, do not slay a woman. O Pandava, the observance of virtue is a higher duty than the protection of life. Hidimva, who had come with the object of slaying us, thou hast already slain. This woman is the sister of that Rakshasa, what can she do to us even if she were angry?'