Agnipurana 156.12

156.12

rathyāmākramya cācāmedvāso viparidhāya ca /
mārjāraś caṅkramācchuddhaś caturythe 'hni rajasvalā //

walked upon a public street, and changed one's garment, one should sip water. / A cat is pure while walking around. A menstruating woman [becomes pure] on the fourth day;