ŚB 9.9.25

राक्षसं भावमापन्न: पादे कल्माषतां गत: ।
व्यवायकाले दद‍ृशे वनौकोदम्पती द्विजौ ॥ २५ ॥
rākṣasaṁ bhāvam āpannaḥ
pāde kalmāṣatāṁ gataḥ
vyavāya-kāle dadṛśe
vanauko-dampatī dvijau

Synonyms

rākṣasamman-eating; bhāvampropensity; āpannaḥhaving gotten; pādeon the leg; kalmāṣatāma black spot; gataḥobtained; vyavāya-kāleat the time of sexual intercourse; dadṛśehe saw; vana-okaḥliving in the forest; dam-patīa husband and wife; dvijauwho were brāhmaṇas..

Translation

Saudāsa thus acquired the propensity of a man-eater and received on his leg a black spot, for which he was known as Kalmāṣapāda. Once King Kalmāṣapāda saw a brāhmaṇa couple engaged in sexual intercourse in the forest.