Srimad-Bhagavatam: Canto 2 - Chapter 1 - Verse 19
Sanskrit:
तत्त्वानां परिसंख्यानं लक्षणं हेतुलक्षणम् ।पुरुषाराधनविधिर्योगस्याध्यात्मिकस्य च ॥ १९ ॥
ITRANS:
tattvānāṁ parisaṅkhyānaṁlakṣaṇaṁ hetu-lakṣaṇampuruṣārādhana-vidhiryogasyādhyātmikasya ca
Translation:
Kindly explain all about the elementary principles of creation, the number of such elementary principles, their causes, and their development, and also the process of devotional service and the method of mystic powers.