SB 7.5.39-40

nairṛtās te samādiṣṭā
 bhartrā vai śūla-pāṇayaḥ
tigma-daṁṣṭra-karālāsyās
 tāmra-śmaśru-śiroruhāḥ
nadanto bhairavaṁ nādaṁ
 chindhi bhindhīti vādinaḥ
āsīnaṁ cāhanañ śūlaiḥ
 prahrādaṁ sarva-marmasu
Word for word: 
nairṛtāḥ — the demons; te — they; samādiṣṭāḥ — being fully advised; bhartrā — by their master; vai — indeed; śūla-pāṇayaḥ — having tridents in their hands; tigma — very sharp; daṁṣṭra — teeth; karāla — and fearful; āsyāḥ — faces; tāmra-śmaśru — coppery mustaches; śiroruhāḥ — and hair on the head; nadantaḥ — vibrating; bhairavam — fearful; nādam — sound; chindhi — chop; bhindhi — divide into small parts; iti — thus; vādinaḥ — speaking; āsīnam — who was sitting silently; ca — and; ahanan — attacked; śūlaiḥ — with their tridents; prahrādam — Prahlāda Mahārāja; sarva-marmasu — on the tender parts of the body.
Translation: 
The demons [Rākṣasas], the servants of Hiraṇyakaśipu, thus began striking the tender parts of Prahlāda Mahārāja’s body with their tridents. The demons all had fearful faces, sharp teeth and reddish, coppery beards and hair, and they appeared extremely threatening. Making a tumultuous sound, shouting, “Chop him up! Pierce him!” they began striking Prahlāda Mahārāja, who sat silently, meditating upon the Supreme Personality of Godhead.