Aphorisms on Brahman 2.683.2

2.683.2

śabdaścānannasya pratiṣedhakaḥ kāmakāranivṛttiprayojanaḥ kāṭhakānāṃ saṃhitāyāṃ śrūyate - 'tasmādbrahmaṇaḥ surāṃ na pibet' iti /
so 'pi 'na ha vā evaṃvidi' (chā. 5.2.1) ityasyārthavādatvādupapannataro bhavati /
tasmādevañjātīyakā arthavādā na vidhaya iti // 31 //

There is also a scriptural passage prohibiting unlawful food, the purpose of which it is to stop procedure therein according to one's liking, viz. in the Samhitâ of the Kathas, 'Therefore a Brâhmana is not to drink spirits.' This text also is more appropriate if we take the passage, 'To him who knows this,' as an arthavâda.--Hence passages of that kind are arthavâdas, not injunctions.