A Bhāvanā (4) (supportive contemplation) of the Satya Mahāvrata (second great vow of truth); it prescribes speaking only after weighing all the pros and cons or speaking only on finding an opportune moment.
anuvīcīti deśīvacanamālocanārthe vartate. bhāṣaṇaṃ vacanasya pravartanam, ato'yamarthaḥ- samīkṣyālocya vacanaṃ pravartitavyam.
(TaBhā 7.3 Vṛ)
samikkhitaṃ saṃjateṇa kālammi ya vattavvaṃ. evaṃ aṇuvīi samitijogeṇa bhāvito bhavati aṃtarappā.
(Praśna 7.17)