Bhagavad Gita 11.48
It is not possible for man on earth to see what thou hast seen, O thou foremost hero of the Kuru-clan, through study of the scriptures, sacrifice or gift, ritual or rigorous austerity!
न वेदयज्ञाध्ययनैर्न दानै
र्न च क्रियाभिर्न तपोभिरुग्रैः।
एवंरूपः शक्य अहं नृलोके
द्रष्टुं त्वदन्येन कुरुप्रवीर॥na vedayajñādhyayanairna dānai
rna ca kriyābhirna tapobhirugraiḥ|
evaṃrūpaḥ śakya ahaṃ nṛloke
draṣṭuṃ tvadanyena kurupravīra||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).