Śrīmad-Bhāgavatam · Text 11.22.23
Who is speaking and story frame
तद्वत् षोडशसङ्ख्याने आत्मैव मन उच्यते ।
भूतेन्द्रियाणि पञ्चैव मन आत्मा त्रयोदश ॥ २३ ॥
tadvat ṣoḍaśa-saṅkhyāne
ātmaiva mana ucyate
bhūtendriyāṇi pañcaiva
mana ātmā trayodaśa
According to the calculation of sixteen elements, the only difference from the previous theory is that the soul is identified with the mind. If we think in terms of five physical elements, five senses, the mind, the individual soul and the Supreme Lord, there are thirteen elements.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.