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 //