Saurapurana 15.18

15.18

tatastasyāgrataḥ śuddhaṃ nyasetkṛṣṇājinaṃ budhaḥ
tasyopari tilānāṃ tu kṛṣṇānāmāḍhakaṃ nyaset

then the wise man should place a clean black-antelope skin before him; / on top of that he should place an āḍhaka measure of black sesame seeds;