Bhagavad Gita 18.68 Chapter 18, Verse 68

य इमं परमं गुह्यं मद्भक्तेष्वभिधास्यति ।
भक्तिं मयि परां कृत्वा मामेवैष्यत्यसंशयः ॥१८.६८॥

ya imaṃ paramaṃ guhyaṃ madbhakteṣvabhidhāsyati
bhaktiṃ mayi parāṃ kṛtvā māmevaiṣyatyasaṃśayaḥ

Meaning

Whoever teaches this supreme secret to my devotees, having shown the highest devotion to me, will without doubt come to me.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 18.68 (Chapter 18, Liberation through Renunciation (Moksha Sannyasa Yoga), Verse 68)