Śatapatha Brāhmaṇa ("of a hundred paths") 14.1.2.11

14.1.2.11

atha varāhavihatam iyatyagra āsīditīyatī ha vā iyamagre pṛthivyāsa prādeśamātrī tāmemūṣa iti varāha ujjaghāna so'syāḥ patiḥ prajāpatistenaivainametanmithunena priyeṇa dhāmnā samardhayati kṛtsnaṃ karoti makhasya te'dya śiro rādhyāsaṃ devayajane pṛthivyā makhāya tvā makhasya tvā śīrṣṇa ityasāveva bandhuḥ

Then (earth) torn up by a boar (he takes), with (Vâg. S. XXXVII, 5), 'Only thus large was she in the beginning,'--for, indeed, only so large was this earth in the beginning, of the size of a span. A boar, called Emûsha, raised her up, and he was her lord Pragâpati: with that mate, his heart's delight, he thus supplies and completes him;--'may I this day compass for you Makha's head on the Earth's place of divine worship: for Makha thee! for Makha's head thee!' the import of this is the same as before.