Aitareya Brahmana

Aitareya Brahmana is the Brahmana of Rigved. 

Page 107 of

https://books.google.co.in/books?id=UDawvHc4AxgC&printsec=frontcover#v=onepage&q&f=false

Panchika 1

The Soma Sacrifice

Adhyaya I

The Consecration of the Sacrifice

i.1. Agni is the lowest of Gods, Vishnu, the highest; between them are all the other deities.

The mantras to be recited are given in footnotes. I checked some of them.

Rigved Mantras - Meanings

Book 1

https://www.wisdomlib.org/hinduism/book/rig-veda-english-translation/d/doc828864.html

Book 2

https://www.wisdomlib.org/hinduism/book/rig-veda-english-translation/d/doc831062.html

Book 3

https://www.wisdomlib.org/hinduism/book/rig-veda-english-translation/d/doc831535.html

Book 5

https://www.wisdomlib.org/hinduism/book/rig-veda-english-translation/d/doc832863.html

Book 10

https://www.wisdomlib.org/hinduism/book/rig-veda-english-translation/d/doc838508.html

Chapter 42 - The Story of Brāhmaṇa Aitareya

Of Skanda Purana

https://www.wisdomlib.org/hinduism/book/the-skanda-purana/d/doc366029.html