One verse

Srimad Bhagavatam 1.2.11

1.2.11

वदन्ति तत्तत्त्वविदस्तत्त्वं यज्ज्ञानमद्वयम् । ब्रह्मेति परमात्मेति भगवानिति शब्द्यते ॥ ११ ॥

vadanti tat tattva-vidas tattvam yaj jnanam advayam brahmeti paramatmeti bhagavan iti sabdyate

vadanti
they say
tat
that
tattva-vidah
the learned souls
tattvam
the Absolute Truth
yat
which
jnanam
knowledge
advayam
nondual
brahma iti
known as Brahman
paramatma iti
known as Paramatma
bhagavan iti
known as Bhagavan
sabdyate
it so sounded.

Learned transcendentalists who know the Absolute Truth call this nondual substance Brahman, Paramatma or Bhagavan.