Mbh 13.85.10c

One arose first from the flames of the fire (called Bhrig) and hence he came to be called by the name of Bhrigu. A second came from the burning charcoals (called Angara) and hence he came to be called by the name of Angiras. The third sprang from a heap of extinguished charcoals and he came to be called by the name of Kavi. It has been already said that the first came out with flames emanating from his body and hence he was called Bhrigu. From the rays of the sacrificial fire sprang another called Marichi. From Marichi (afterwards) sprang Kasyapa. It has been already said that from the (burning) charcoals sprang Angiras. The (diminutive) Rishis called Valakhilyas sprang from the blades of Kusa grass spread out in that sacrifice. From the same blades of Kula grass, O thou of great puissance, sprang Atri. From the ashes of the fire sprang all those that are numbered among the regenerate Rishis, viz., the Vaikhanasas, endued with penances and devoted to Vedic lore and all excellent accomplishments. From the eyes of Agni sprang the twin Aswins endued with great beauty of person. At last, from his ears, sprang all the Prajapatis. The Rishis sprang from the pores of Agni's body. From his sweat sprang Chhandas, and from his strength sprang Mind. For this reason, Agni has been said to be all the deities in his individual self, by Rishis endued with Vedic lore, guided by the authority of the Vedas. The pieces of wood that keep alive the flames of Agni are regarded as the Months. The Juices that the fuel yields constitute the Fortnights. The liver of Agni is called the Day and Night, and his fierce light is called the Muhurtas. The blood of Agni is regarded as the source of the Rudras. From his blood sprang also the gold-complexioned deities called the Maitradevatas. From his smoke sprang the Vasus. From his flames sprang the Rudras as also the (twelve) Adityas of great effulgence.