Shiva Purana
उच्चार्य्य स्कन्दगायत्रीं ध्यायेदथ कुमारकम्॥ उद्यदादित्यसंकाशं मयूरवरवाहनम्॥ २०॥
Then one should chant the Skanda Gayatri and meditate on the Kumaraka. It was like the rising sun and carried by a great peacock.
english translation
uccAryya skandagAyatrIM dhyAyedatha kumArakam॥ udyadAdityasaMkAzaM mayUravaravAhanam॥ 20॥
hk transliteration by Sanscript