Devibhagavatapurana 12.7.82

12.7.82

śrīnārāyaṇa uvāca |
tataḥ kuṇḍasya saṃskāraṃ sthaṇḍilasya ca vā mune |
pravakṣyāmi samāsena yathāvidhi vidhānataḥ ||

O Nârada! Now I am describing briefly about the Homa Kunda (a round hole in the ground consecrated to the Deity) and the Samskâra ceremony of the Sthandila (the sacrificial altar). Uttering, first, the Mûla Mantra, see, fix your gaze on the Kunda; then sprinkle it with water and the Phat mantra and drive away the evil-spirits from there. Then with mantra “Hûm” again sprinkle it with water.
Then draw within it three lines Prâgagra and Udagagra (on the eastern and northern sides). Sprinkling it with water and the Pranava, worship within the Pîtha, uttering the mantras from Âdhâra S’aktaye namah to Amuka Devî Yoga Pîthâya namah. Invoke, in that Pîtha, the Highest One, Who is S’iva S’ivâ with all one-ness of heart and worship Her with scents and offerings. Then think for a moment the Devî as having taken bath and as one with S’ankara. Bring then fire in a vessel and taking a flaming piece thereof throw that in the south-west corner. Then purifying it by the gaze and quitting the portions of Kravyâdah, impart the Chaitanya by “Ram,” the Vahnivîja repeat “Om” over it seven times. Shew, then, the Dhenumudrâ and protect it by Phat Kâra and cover, veil, it with the mantra “Hûm.” Then turn the fire, thus worshipped with sandalpaste, etc., thrice over the Kunda and with both the knees on the ground and repeating the Pranava, consider the Agni as the Vîrya of S’iva and throw it on the yoni of the Devî in the Pîtha. Then offer Âchamana, etc., to the Deva and the Devî and worship. Then light the flame with the mantra “Chit Pingala Hana Hana Daha Daha Pacha Pacha Sarvajñâ Jñâpaya Svâhâ.” Then utter the stotra to the Agni Deva with great love, repeating the mantra “Agnim Prajvalitam vande Jâtavedam Hutâs’anam suvarna varnamamalam samiddham Visvatomukham.” Then perform the Sadamganyâsa to the Agni Deva “Om Sahasrârchchise namah, Om Svasti Pûrnâya Svâhâ,” “Om Uttistha purusâya vasat,” “Om Dhûma vyâpine Hûm Om Sapta Jihvâya vausat” “Om Dhanur dharâya Phat.” Repeating the above six mantras, perform the Nyâsa on the heart, etc., the six places. Now meditate on the Agni as of a golden colour, three-eyed, seated on a lotus and holding in His four hands signs of granting boons, S’akti, Svastika and sign of “no fear,” also meditate on Agni, as the seat of the greatest auspiciousness. Then moisten the Kunda on the top of the belt (mekhalâ) with water. Next spread the Kus’a grass all around and draw the Agni yantra over it, i.e., triangle, hectagon, circle, eight-petalled figure and Bhûpura; rather have this drawing before the Agnisthâpanâ. Now meditate this only. Then, within the Yantra, recite “Vais’vânara Jâtaveda Lohitâksa sarvakarmâni Sâdhaya Svâhâ” and worship Agni. Then worship in the centre and in the hectagon at the corners worship the Saptajihvâ (seven tongues Hiranya, Gaganâ, Raktâ, Krisnâ, Suprabhâ, Bahurûpâ, Atiraktikâ) and next worship within the pericarp of the lotus the Anga Devatâs. Then recite the following mantras within the eight petals:-- “Om Agnaye Jâtavedase namah,” “ Om Agnaye Saptajihvâya namah,” “ Om Agnaye Havyavâhanâya namah,” “Om Agnaye As’vodarajâya namah,” “Om Agnaye Vais’vânarâya namah,” “Om Agnaye Kaumâra tejase namah,” “Om Agnaye Vis’vamukhâya namah,” “Om Agnaye Devamukhâya namah” and considering the forms to hold S’akti and Svastik, worship them. Then consider Indra and the other Lokapâlas (Regents of the several quarters) situated in the east, south-east, and so on together with their weapons, the thunderbolt and the other weapons, and thus worship them.