Manava Dharmashastra 6.48

6.48

saptadvārāṇi ca dharmārthī dharmakāmāvarthakāmau kāmārthau kāmadharmau 'arthadharmau' trivarga iti | atrā'vakīrṇāṃ vicittāmetadviṣayāṃ na vācaṃ vadedanṛtām | bhedāśrayatvādeteṣām, bhedasya sarvasyāsatyatvādamṛttāmityuktam | kiṃtarhi mokṣāśrayāmeva vadet | athavā sapta śīrṣaṇyāḥ prāṇāste vāco dvārāṇi | athavā ṣaḍindriyāṇi buddhiḥ saptamī | etairgṛhīteṣvartheṣu vāk pravartate | suvibhaktaya ityanye |

Medhātithi’s commentary (manubhāṣya):
‘Seven openings’—(1) Duty and wealth, (2) duty and pleasure, (3) wealth and pleasure, (4) pleasure and wealth, (5) pleasure and duty, (6) wealth and duty, and (7) wealth—pleasure—duty. He shall not utter an untrue word spreading over all these. All these are based upon notions of diversity; and all diversity is untrue; hence the word relating to these is called ‘untrue’.

The sense is that the man shall speak only such words as pertain to Liberation.

Or, the ‘seven openings’ may stand for the seven breaths in the head; and these are the ‘openings’ of speech. Or, it may stand for the six sense-organs and Intellect as the seventh. It is only when objects have been perceived by means of these that words speak of them. Others explain that the ‘seven openings’ stand for the seven declensional terminations.—(48).