Brihajjataka 3.4

3.4

lagna aṃśakād graha yoga īkṣaṇād vā varṇān vaded bala yuktā dvi yonau/
dṛṣṭyā sa mānān pravadet sva saṃkhyayā rekhāṃ vadet smara saṃsthaiś ca pṛṣṭhe//(vaiśvadevī)

From the navāṃśa of the ascendant or from the planet's conjunction and aspect, one should predict the colors of the strong planet in a non-human birth; / One should state stripes equal in number to the aspecting planets according to their count, and from those situated in the seventh house, [stripes] upon the back.