SB 6.19.21
एतेन पूजाविधिना मासान् द्वादश हायनम् ।
नीत्वाथोपरमेत्साध्वी कार्तिके चरमेऽहनि ॥ २१ ॥
etena pūjā-vidhinā
māsān dvādaśa hāyanam
nītvāthoparamet sādhvī
kārtike carame 'hani
SYNONYMS

etena—with this; pūjā-vidhinā—regulated worship; māsān dvādaśa—twelve months; hāyanam—a year; nītvā—after passing; atha—then; uparamet—should fast; sādhvī—the chaste wife; kārtike—in Kārttika; carame ahani—on the final day.

TRANSLATION

The chaste wife must perform such devotional service continuously for one year. After one year passes, she should fast on the full-moon day in the month of Kārttika [October–November].