Bhagavad Gita 10.36
I am the gambler's cheat and the splendor of the splendid; I am victory; I am effort; and I am the purity of the pure.
द्यूतं छलयतामस्मि तेजस्तेजस्विनामहम्।
जयोऽस्मि व्यवसायोऽस्मि सत्त्वं सत्त्ववतामहम्॥dyūtaṃ chalayatāmasmi tejastejasvināmaham|
jayo'smi vyavasāyo'smi sattvaṃ sattvavatāmaham||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).