Ashtangahridayasamhita 90

90

a-saṃmārjitam ādarśam an-upaskṛta-kāminīm |
rajasvalāṃ ca nekṣeta sadā prātar a-maṅgalam || 38+1 ||

an unpolished mirror, a woman not adorned, / and a menstruating woman one should never look upon at morning, [as these are] inauspicious;