Śatapatha Brāhmaṇa ("of a hundred paths") 6.1.2.4

6.1.2.4

so 'kāmayata | bhūya eva syātprajāyeteti sa ādityena divam mithunaṃ samabhavattata āṇḍaṃ samavartata tadabhyamṛśadreto bibhṛhīti tataścandramā asṛjyataiṣa vai reto 'tha yadaśru saṃkṣaritamāsīttāni nakṣatrāṇyabhavannatha yaḥ kapāle raso lipta āsīttā avāntaradiśo 'bhavannatha yatkapālamāsīttā diśo 'bhavan

He desired, 'May it multiply, may it reproduce itself!' By means of the Sun he entered into union with the Sky: thence an egg arose. He touched it, saying, 'Bear thou seed!' From it the moon was created, for he (the moon) is seed. And the tear which formed itself became those stars. And the juice which was adhering to the shell became those intermediate quarters; and that which was the shell became those (chief) quarters (points of the compass).