Bhashya
अथ यदवोच भुव प्रपद्ये इति, अग्न्यादीन्प्रपद्ये इतितदवोचम् ॥
In plain words
Now, when I spoke the words 'I take refuge in bhuvaḥ,' what I meant was simply this: 'I take refuge in Agni and the other deities.'
Close to the Sanskrit
Now, what I spoke as 'I resort to bhuvaḥ',—[by that] I spoke 'I resort to Agni and the other deities'.