The Law Code of Yājñavalkya 1.3.137

1.3.137

ity atrāpi niyamo vyākhyātaḥ | nāntarā bhojanaṃ kuryāt iti ca punaruktaṃ syāt parisaṃkhyāyām | evaṃ ca niyame sati ṛtāv ṛtāv iti vīpsā labhyate, nimittāvṛttau naimittikam apy āvartate iti nyāyāt | yathākāmī bhavet ity ayam api niyama eva | anṛtāv api strīkāmanāyāṃ satyāṃ striyam abhiramayed eveti | ṛtāv upeyāt sarvatra vā pratiṣiddhavarjam (GDh 5.1–2) iti etad api gautamīyaṃ sūtradvayaṃ niyamaparam eva | ṛtāv upeyād anṛtāv api strīkāmanāyāṃ satyāṃ pratiṣiddhavarjam upeyād evety alam atiprasaṅgena || 1.81 ||

is also explained as a restrictive injunction. And [otherwise] "He should not eat in between" would be redundant under an exclusionary injunction. And thus, when there is a restrictive injunction, the distributive sense "in every season" is obtained, based on the principle: "Upon the repetition of the occasion, that which depends on the occasion also recurs." The statement "He may act according to desire" is also merely a restrictive injunction: when there is desire in the woman even outside the season, he must indeed bring pleasure to the woman. As for "He should approach in the season, or everywhere except on forbidden days" (GDh 5.1–2)—this pair of Gautama's sūtras is also intended solely as a restrictive injunction: he must approach during the season, and even outside the season when there is desire in the woman, he must approach except on forbidden days. Enough of digression. || 1.81