One verse

Srimad Bhagavatam 12.7.6

12.7.6

अधीयन्त व्यासशिष्यात् संहितां मत्पितुर्मुखात् । एकैकामहमेतेषां शिष्य: सर्वा: समध्यगाम् ॥ ६ ॥

adhīyanta vyāsa-śiṣyāt saṁhitāṁ mat-pitur mukhāt ekaikām aham eteṣāṁ śiṣyaḥ sarvāḥ samadhyagām

adhīyanta
they have learned
vyāsa-śiṣyāt
from the disciple of Vyāsadeva (Romaharṣaṇa)
saṁhitām
the collection of the Purāṇas
mat-pituḥ
of my father
mukhāt
from the mouth
eka-ekām
each learning one portion
aham
I
eteṣām
of these
śiṣyaḥ
the disciple
sarvāḥ
all the collections
samadhyagām
I have thoroughly learned

Each of them studied one of the six anthologies of the Purāṇas from my father, Romaharṣaṇa, who was a disciple of Śrīla Vyāsadeva. I became the disciple of these six authorities and thoroughly learned all their presentations of Purāṇic wisdom.