Let us offer our respectful obeisances unto that Supreme Personality of Godhead, whose incarnations and activities are chanted by us for glorification, though He can hardly be fully known as He is.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
स एष आद्यः पुरुषः कल्पे कल्पे सृजत्यजः । आत्माऽऽत्मन्यात्मनाऽऽत्मानं संयच्छति च पाति च
sa eṣa ādyaḥ puruṣaḥ kalpe kalpe sṛjatyajaḥ | ātmā''tmanyātmanā''tmānaṃ saṃyacchati ca pāti ca
SB 2.6.38