One verse

Srimad Bhagavatam 11.22.23

11.22.23

तद्वत् षोडशसङ्ख्याने आत्मैव मन उच्यते । भूतेन्द्रियाणि पञ्चैव मन आत्मा त्रयोदश ॥ २३ ॥

tadvat ṣoḍaśa-saṅkhyāne ātmaiva mana ucyate bhūtendriyāṇi pañcaiva mana ātmā trayodaśa

tadvat
similarly
ṣoḍaśa-saṅkhyāne
in counting sixteen
ātmā
the soul
eva
indeed
manaḥ
as the mind
ucyate
is identified
bhūta
the five gross elements
indriyāṇi
the senses
pañca
five
eva
certainly
manaḥ
the mind
ātmā
the soul (both the individual soul and the Supersoul)
trayodaśa
thirteen

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.