Matsyapurana 163.29

163.29

triśikhāṃ bhrukuṭīṃ cāsya dadṛśurdānavā raṇe
lalāṭasthāṃ triśūlāṅkāṃ gaṅgāṃ tripathagāmiva //

The universe pervaded with darkness under the cover of which the demons again began to array themselves with arms, when Narasiṁha shone forth like the Sun, and the demons saw the three wrinkles on the forehead of Narasiṁha which were the trident mark looking like the stream of the Ganges flowing in three directions.—28 29