Genesis 31:35

35And she said to her father, “Let not my lord be angry that I cannot arise before you, for the way of women is upon me.” So he searched but did not find the household gods.

Leviticus 15:19

19When a woman has a discharge, and the discharge in her body is blood, she shall be in her menstrual impurity for seven days, and whoever touches her shall be unclean until the evening.
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