Shatapatha Brahmana 13.2.10.3

13.2.10.3

trayyaḥ sūcyo bhavanti lohamayyo rajatā hariṇyo diśo vai lohamayyo'vāntaradiśo rajatā ūrdhvā hariṇyastābhirevainaṃ kalpayanti tiraścībhiṣcordhvābhiśca bahurūpā bhavanti tasmādbahurūpā diśo nānārūpā bhavanti tasmānnānārūpā diśaḥ

Three kinds of needles are (used), copper ones, silver ones, and gold ones;--those of copper, doubtless, are the (principal) regions (of the compass), those of silver the intermediate ones, and those of gold the upper ones: it is by means of these (regions) they render it fit and proper. By way of horizontal and vertical (stitches) they are many-formed, whence the regions are many-formed; and they are of distinct form, whence the regions are of distinct form.