BG. 18.68
य इदं परमं गुह्यं मद्भक्तेष्वभिधास्यति ।
भक्तिं मयि परां कृत्वा मामेवैष्यत्यसंशय: ॥ ६८ ॥
ya idaṁ paramaṁ guhyaṁ
mad-bhakteṣv abhidhāsyati
bhaktiṁ mayi parāṁ kṛtvā
mām evaiṣyaty asaṁśayaḥ
Translation
For one who explains this supreme secret to the devotees, pure devotional service is guaranteed, and at the end he will come back to Me.