Śrī Vyāsadeva said: All you have said about me is perfectly correct. Despite all this, I am not pacified. I therefore question you about the root cause of my dissatisfaction, for you are a man of unlimited knowledge due to your being the offspring of one [Brahmā] who is self-born [without mundane father and mother].
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
व्यास उवाच । अस्त्येव मे सर्वमिदं त्वयोक्तं तथापि नात्मा परितुष्यते मे । तन्मूलमव्यक्तमगाधबोधं पृच्छामहे त्वाऽऽत्मभवात्मभूतम्
vyāsa uvāca | astyeva me sarvamidaṃ tvayoktaṃ tathāpi nātmā parituṣyate me | tanmūlamavyaktamagādhabodhaṃ pṛcchāmahe tvā''tmabhavātmabhūtam
SB 1.5.5