Rasaprakashasudhakara 6.47

6.47

vilipya veṣṭayitvā ca vartiṃ sūtreṇa veṣṭayet
dhṛtvā saṃdaṃśato vartimadhyaṃ prajvālayecca tām //

and rolled up, one should wrap this wick with thread. / Holding it with tongs, one should ignite the middle of the wick;