One can protect oneself from all kinds of Spiritual and Material dangers by hearing and chanting this stotra mentioned in Brahmanda purana. The phalashruthi of this stotram mentions that one can get rid of all kinds of fear by reciting this prayer which was originally chanted by the great devotee Prahlada Maharaja.
narasimha-kavacaṁ vakṣye
prahlādenoditaṁ purā
sarva-rakṣā-karaṁ puṇyaṁ
sarvopadrava-nāśanam
sarva-sampat-karaṁ caiva
svarga-mokṣa-pradāyakam
dhyātvā nṛsiṁhaṁ deveśaṁ
hema-siṁhāsana-sthitam
vivṛtāsyaṁ tri-nayanaṁ
śarad-indu-sama-prabham
lakṣmyāliṅgita-vāmāṅgam
vibhūtibhir upāśritam
catur-bhujaṁ komalāṅgaṁ
svarṇa-kuṇḍala-śobhitam
śriyāsu-śobhitoraskaṁ
ratna-keyūra-mudritam
tapta-kāncana-sankāśaṁ
pīta-nirmala-vāsasam
indrādi-sura-mauliṣṭha
sphuran māṇikya-dīptibhiḥ
virājita-pada-dvandvaṁ
śaṅkha-cakrādi-hetibhiḥ
garutmatā chavinayāt
stūyamānam mudānvitam
sva-hṛt-kamala-saṁvāsaṁ
kṛtvā tu kavacaṁ pathet
nṛsiṁho me śirah pātu
loka-raksātma-sambhavah
sarvago ’pi stambha-vāsaḥ
phālaṁ me rakṣatu dhvanim
nṛsiṁho me dṛśau pātu
soma-sūryāgni-locanaḥ
smṛtiṁ me pātu nṛhariḥ
muni-varya-stuti-priyaḥ
nāsāṁ me siṁha-nāśas tu
mukhaṁ lakṣmī-mukha-priyaḥ
sarva-vidyādhipaḥ pātu
nṛsiṁho rasanām mama
vaktraṁ pātv indu-vadanaḥ
sadā prahlāda-vanditaḥ
nṛsiṁhah pātu me kaṇṭhaṁ
skandhau bhū-bharaṇānta-kṛt
divyāstra-śobhita-bhujo
nṛsiṁhaḥ pātu me bhujau
karau me deva-varado
nṛsiṁhaḥ pātu sarvataḥ
hṛdayaṁ yogi-sādhyaś ca
nivāsaṁ pātu me hariḥ
madhyaṁ pātu hiraṇyāksa
vakṣaḥ-kukṣi-vidāraṇaḥ
nābhiṁ me pātu nṛhariḥ
sva-nābhi-brahma-saṁstutaḥ
brahmāṇḍa-koṭayaḥ kaṭyāṁ
yasyāsau pātu me kaṭim
guhyaṁ me pātu guhyānāṁ
mantrāṇām guhya-rūpa-dhṛk
ūrū manobhavaḥ pātu
jānunī nara-rūpa-dhṛk
jaṅghe pātu dharā-bhāra
hartā yo ’sau nṛ-keśarī
sura-rājya-pradaḥ pātu
pādau me nṛharīśvaraḥ
sahasra-śīrṣā-puruṣaḥ
pātu me sarvaśas tanum
mahograḥ pūrvataḥ pātu
mahā-vīrāgrajo ’gnitaḥ
mahā-viṣṇuḥ dakṣiṇe tu
mahā-jvālas tu nairṛtau
paścime pātu sarveśo
diśi me sarvatomukhaḥ
nṛsiṁhaḥ pātu vāyavyāṁ
saumyāṁ bheeṣaṇa-vigrahaḥ
īśānyāṁ pātu bhadro me
sarva-maṅgala-dāyakaḥ
saṁsāra-bhayadaḥ pātu
mṛtyor mṛtyur nṛ-keśarī
idaṁ nṛsiṁha-kavacaṁ
prahlāda-mukha-maṅḍitam
bhaktimān yaḥ paṭhennityam
sarva-pāpaiḥ pramucyate
putravān dhanavān loke
dīrghāyur upajāyate
yaṁ yaṁ kāmayate kāmaṁ
taṁ taṁ prāpnoty asaṁśayam
sarvatra jayam āpnoti
sarvatra vijayī bhavet
bhūmy antarīkṣa-divyānāṁ
grahānāṁ vinivāraṇam
vṛścikoraga-sambhūta
viṣāpaharaṇaṁ param
brahma-rākṣasa-yakṣāṇāṁ
dūrotsāraṇa-kāraṇam
bhūrje vā tālapatre vā
kavacaṁ likhitaṁ śubham
kara-mūle dhṛtaṁ yena
sidhyeyuḥ karma-siddhayaḥ
devāsura-manuṣyeṣu
svaṁ svaṁ eva jayaṁ labhet
eka-sandhyaṁ tri-sandhyaṁ
vā yaḥ paṭhen niyato naraḥ
sarva-maṅgala-māṅgalyaṁ
bhuktiṁ muktiṁ ca vindati
dvā-triṁśati-sahasrāṇi
paṭhechhuddhātmabhir nribhih
kavacasyāsya mantrasya
mantra-siddhiḥ prajāyate
anena mantra-rājena
kṛtvā bhasmābhi maṅtraṇam
tilakaṁ bibhriyād yas tu
tasya gṛaha-bhayaṁ haret
tri-vāraṁ japamānas tu
dattaṁ vāryābhimantrya ca
prāśaye dyam naram mantraṁ
nṛsiṁha-dhyānamācaret
tasya rogāḥ praṇaśyanti
ye ca syuḥ kukṣi-sambhavāḥ
kimatra bahunoktena
nṛsimha sadṛśo bhavet
manasā cintitam yattu
sa tacchāpnotya samśayaṁ
garjantaṁ garjayantam nija-bhuja-patalaṁ sphoṭayantaṁ hatantaṁ
dipyantaṁ tāpayantaṁ divi bhuvi ditijaṁ kṣepayantam kṣipantam
krandantaṁ roṣayantaṁ diśi diśi satataṁ saṁharantaṁ bharantaṁ
vīkṣantaṁ ghūrṇayantaṁ kara-nikara-śataiḥ divya-siṁhaṁ namāmi
iti śrī-brahmāṇḍa-purāṇe prahlādoktaṁ
śrī-nṛsiṁha-kavacaṁ sampūrṇam.
