Śatapatha Brāhmaṇa ("of a hundred paths") 8.4.3.13

8.4.3.13

ekaviṃśatyāstuvateti | daśa hastyā aṅgulayo daśa pādyā ātmaikaviṃśastenaiva tadastuvataikaśaphāḥ paśavo 'sṛjyantetyekaśaphāḥ paśavo 'trāsṛjyanta varuṇo 'dhipatirāsīditi varuṇo 'trādhipatirāsīt

'With twenty-one they sang praises,'--there are ten fingers, ten toes, and the trunk is the twenty-first: it is therewith that they then sang praises;--'the one-hoofed animals were created,'--the one-hoofed animals indeed were now created;--'Varuna was the lord!'--Varuna indeed was now the lord.