Manusmriti

siva.sh/manusmriti/3/45

ऋतुकालाभिगामी स्यात् स्वदारनिरतः सदा । पर्ववर्जं व्रजेच्चैनां तद्व्रतो रतिकाम्यया ॥ ४५ ॥

sanskrit

Let (the husband) approach his wife in due season, being constantly satisfied with her (alone); he may also, being intent on pleasing her, approach her with a desire for conjugal union (on any day) excepting the Parvans.

english translation

RtukAlAbhigAmI syAt svadAranirataH sadA | parvavarjaM vrajeccainAM tadvrato ratikAmyayA || 45 ||

hk transliteration by Sanscript