Mahabharata 1.52.20

सप्तशीर्षा द्विशीर्षाश्च पञ्चशीर्षास्तथापरेकालानलविषा घोरा हुताः शतसहस्रशः

saptaśīrṣā dviśīrṣāśca pañcaśīrṣāstathāparekālānalaviṣā ghorā hutāḥ śatasahasraśaḥ

Our plain-language meaning of this verse is waiting for scholar review.