Skanda Purana — Mahesvara Khanda, Shloka 35
अत्र तुष्टो ददौ रुद्रः सुराणां दुर्लभान्वरान् । वैशाखमासस्याष्टम्यां कृष्णायां सिद्धकूपके
atra tuṣṭo dadau rudraḥ surāṇāṃ durlabhānvarān | vaiśākhamāsasyāṣṭamyāṃ kṛṣṇāyāṃ siddhakūpake
இங்கு மகிழ்ந்த ருத்ரன் தேவர்களுக்கும் அரிதான வரங்களை அருளினார்—வைசாக மாதத்தின் கிருஷ்ணபட்ச அஷ்டமியில், சித்தகூபத்தில்।
Lomaharṣaṇa (Sūta), by Māheśvarakhaṇḍa contextual attribution
Tirtha: Siddhakūpa
Type: kund
Scene: A stone well (kūpa) adorned with garlands; Rudra’s presence implied as a radiant liṅga/tejas above the well; night of kṛṣṇa-aṣṭamī in Vaiśākha with lamps, devotees drawing water and offering bilva leaves.
FAQs
Śiva’s grace becomes especially accessible at a sanctified place and time; sacred geography and sacred calendrics together intensify merit and blessings.
Siddhakūpa, presented as a boon-bestowing sacred site associated with Rudra.
Observance tied to the Vaiśākha month, specifically the dark-fortnight Aṣṭamī at Siddhakūpa (implying pilgrimage/worship on that tithi).