Shiva Purana — Rudra Samhita, Shloka 27
गणेशविवाहोत्सवः तथा सिद्धि-बुद्धि-सन्तानवर्णनम् | Gaṇeśa’s Wedding Festival and the Progeny of Siddhi & Buddhi
तद्दिनं हि समारभ्य कार्तिकेयस्य तस्य वै । शिवपुत्रस्य देवर्षे कुमारत्वं प्रतिष्ठितम्
taddinaṃ hi samārabhya kārtikeyasya tasya vai | śivaputrasya devarṣe kumāratvaṃ pratiṣṭhitam
その日より後、ああ神聖なる仙よ、カールティケーヤ—まことにシヴァの御子—に「クマーラ」（常に若き神子）たる位が堅固に定まった。
Suta Goswami
Tattva Level: pashu
Shiva Form: Umāpati
FAQs
It affirms Kartikeya’s divinely ordained identity as Śiva’s son and the archetype of “Kumāra”—ever-pure, ever-youthful spiritual power—indicating that grace (Śiva-anugraha) can establish an unshakable divine state.
By calling Kartikeya explicitly “Śivaputra,” the verse ties devotion to Shiva’s manifest (saguṇa) forms and family—rooted in the Lord’s presence in the Liṅga—to the lived tradition of worship where Shiva’s grace is approached through his tangible divine manifestations.
A practical takeaway is steady bhakti to Saguna Śiva with japa of the Pañcākṣarī (“Om Namaḥ Śivāya”) and remembrance of Śiva’s grace that ‘establishes’ spiritual firmness; optionally, worship may be supported by Tripuṇḍra (bhasma) and rudrākṣa as Shaiva disciplines.