Anandakanda 1.2.98

1.2.98

kaṭyādi hṛdayāntaṃ ca bahirdhyeyastrikoṇagaḥ /
raṃ bījaṃ raktavarṇaśca svastikena vibhūṣitaḥ //

From the hips up to the heart, situated in a triangle, fire is to be visualized outside,
[having] the seed-syllable 'raṃ', red-colored, and adorned with a svastika.