Shatapatha Brahmana 14.3.1.4

14.3.1.4

yā te gharma divyā śugiti yaiva divyā śugyā gāyatryāṃhavirdhāna iti yaiva gāyatryāṃ havirdhāne sā ta āpyāyatāṃ niṣṭyāyatāṃ tasyai te svāheti nātra tirohitamivāsti

[He offers, with Vâg. S. XXXVIII, 18,] 'What heavenly fire of thine there is, O Gharma,'--just the fire which is heavenly;--'what is in the Gâyatrî and in the Havirdhâna,'-- just that which is in the Gâyatrî (metre) and Havirdhâna (shed);--'may that (fire) of thine increase and become firm: to that (fire) of thine, hail!' in this there is nothing hidden, so to speak.