Śatapatha Brāhmaṇa ("of a hundred paths") 3.5.1.27

3.5.1.27

sa vedyantāt | udīcīṃ śamyāṃ nidadhāti sa parilikhati taptāyanī me 'sītīmāmevaitadāhāsyāṃ hitapta eti

From the (north) edge of the altar he lays down the pin from south to north, and draws the (western) outline, with the text (Vâg. S. V, 9), 'Thou art for me the resort of the afflicted!' Thereby he means this (earth), for it is thereon that he walks afflicted.