Śatapatha Brāhmaṇa ("of a hundred paths") 6.7.3.15

6.7.3.15

sīda tvam mātuḥ | asyā upasthe 'ntaragne rucā tvaṃ śivo bhūtvā mahyamagne atho sīda śivastvamiti śivaḥ-śiva iti śamayatyevainametadahiṃsāyai tatho haiṣa imāṃlokāñcāntona hinasti

[Vâg. S. XII, 15-17] 'Seat thee in this thy mother's lap, thou, O Agni, knowing all ordinances! burn her not with thy heat, thy flame! shine in her with a brilliant light!--Glowing with light and heat within thine own seat, be thou gracious unto this Ukhâ, O knower of beings!--Being gracious unto me, O Agni, now seat thee graciously! seat thee here in thine own seat, having made happy all the regions!'--by saying 'Gracious--Gracious,' he appeases him, so that he may not injure any one, and thus he, being appeased, does not injure these worlds.