Śatapatha Brāhmaṇa ("of a hundred paths") 5.4.3.17

5.4.3.17

marutāmojase svāheti | sa yadeva mārutaṃ rathasya tadevaitena prīṇāti catvāro 'śvā rathaḥ pañcamo dvau savyaṣṭhṛsārathī te sapta sapta-sapta va māruto gaṇaḥ sarvamevaitena ratham prīṇāti viśo vai maruto viśamevāsyaitadrājyamabhivimucyate

'To the strength of the Maruts, hail!' He thereby pleases the part of the chariot belonging to the Maruts,--there are four horses, the chariot the fifth, and the warrior (chariot-fighter) and charioteer two--these are seven, and the host of the Maruts consists of (troops of) seven each: he thereby pleases the whole chariot; and the Maruts being the peasants, it is over the peasantry that his kingship is thereby rendered free.