TantraS, 6, 11.0 sapādam aṅguladvayaṃ tuṭiḥ ucyate tāsu catasṛṣu praharaḥ tuṭyardhaṃ tuṭyardhaṃ tatra saṃdhyā evaṃ nirgame dinaṃ praveśe rātriḥ iti tithyudayaḥ //

TantraS, 6, 29.0 catvāri trīṇi dve ekam iti kṛtāt prabhṛti tāvadbhiḥ śataiḥ aṣṭau saṃdhyāḥ //

TantraS, Viṃśam āhnikam, 3.0 tatra niyatabhavaṃ nityaṃ tanmayībhāva eva naimittikaṃ tadupayogi saṃdhyopāsanaṃ pratyaham anuṣṭhānaṃ parvadinaṃ pavitrakam ityādi //

TantraS, Viṃśam āhnikam, 6.0 tatra niyatapūjā saṃdhyopāsā gurupūjā parvapūjā pavitrakam iti avaśyaṃbhāvi //

TantraS, Viṃśam āhnikam, 8.0 tatra kṛtadīkṣākasya śiṣyasya pradhānaṃ mantraṃ savīryakaṃ saṃvittisphuraṇasāram alikhitaṃ vaktrāgamenaiva arpayet tataḥ tanmayībhāvasiddhyarthaṃ sa śiṣyaḥ saṃdhyāsu tanmayībhāvābhyāsaṃ kuryāt taddvāreṇa sarvakālaṃ tathāvidhasaṃskāralābhasiddhyarthaṃ pratyahaṃ ca parameśvaraṃ ca sthaṇḍile vā liṅge vā abhyarcayet //

TantraS, Viṃśam āhnikam, 38.0 adṛṣṭamaṇḍalo 'pi mūrtiyāgena parvadināni pūjayan varṣād eva putrakoktaṃ phalam eti vinā saṃdhyānuṣṭhānādibhiḥ iti vṛddhānāṃ bhogināṃ strīṇāṃ vidhir ayam śaktipāte sati upadeṣṭavyo guruṇā //