Mahabharat

siva.sh/mahabharat/virata-parva/26/8

यथावत पाण्डुपुत्राणां सर्वार्थेषु धृतात्मनाम दुर्ज्ञेयाः खलु शूरास ते अपापास तपसा वृताः ।। ४-२६-८ ।।

sanskrit

'Heroic and sinless, endowed with ascetic merit, the Pāṇḍavas are exceedingly difficult to detect during their period of concealment.' ।। 4-26-8 ।।

english translation

yathAvata pANDuputrANAM sarvArtheSu dhRtAtmanAma durjJeyAH khalu zUrAsa te apApAsa tapasA vRtAH || 4-26-8 ||

hk transliteration by Sanscript