Bhagavad Gita 4.3
स एवायं मया तेऽद्य योगः प्रोक्तः पुरातनः। भक्तोऽसि मे सखा चेति रहस्यं ह्येतदुत्तमम्।।4.3।।
sa evāyaṃ mayā te'dya yogaḥ proktaḥ purātanaḥ| bhakto'si me sakhā ceti rahasyaṃ hyetaduttamam||4.3||
sa evayam maya te'dya yogah proktah puratanah bhakto'si me sakha ceti rahasyam hyetaduttamam4.3
Meaning
Krishna tells Arjuna that He is revealing this ancient, supreme secret because Arjuna is His devotee and friend. The deepest spiritual truths are shared on the basis of love and trust.
वह ही यह पुरातन योग आज मैंने तुम्हें कहा (सिखाया) क्योंकि तुम मेरे भक्त और मित्र हो। यह उत्तम रहस्य है।
This is verse 3 of 42 in Chapter 4 (Jnana Karma Sanyasa Yoga) of the Bhagavad Gita.