Astanga Hrudaya
पर्णे शरावे हस्ते वा भुञ्जीत ब्रह्मचारिणी । चतुर्थेऽह्नि ततः स्नाता शुक्लमाल्याम्बरा शुचिः॥२५॥
She should also observe celibacy (avoid sexual activities) On the fourth day, she should take bath, put on white garlands and dress,
english translation