At this time, being desirous of obtaining a son, a leader of dacoits who came from a śūdra family wanted to worship the goddess Bhadra Kālī by offering her in sacrifice a dull man, who is considered no better than an animal.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
अथ कदाचित्कश्चिद्वृषलपतिर्भद्रकाल्यै पुरुषपशु- मालभतापत्यकामः
atha kadācitkaścidvṛṣalapatirbhadrakālyai puruṣapaśu- mālabhatāpatyakāmaḥ
SB 5.9.12