One verse

Srimad Bhagavatam 11.9.20

11.9.20

तामाहुस्त्रिगुणव्यक्तिं सृजन्तीं विश्वतोमुखम् । यस्मिन् प्रोतमिदं विश्वं येन संसरते पुमान् ॥ २० ॥

tām āhus tri-guṇa-vyaktiṁ sṛjantīṁ viśvato-mukham yasmin protam idaṁ viśvaṁ yena saṁsarate pumān

tām
the mahat-tattva
āhuḥ
they say
tri-guṇa
the three modes of material nature
vyaktim
manifesting as the cause
sṛjantīm
creating
viśvataḥ-mukham
many different categories of cosmic manifestation
yasmin
within the mahat-tattva
protam
strung and bound
idam
this
viśvam
universe
yena
by which
saṁsarate
undergoes material existence
pumān
the living being

According to great sages, that which is the basis of the three modes of material nature and which manifests the variegated universe is called the sūtra or mahat-tattva. Indeed, this universe is resting within that mahat-tattva, and due to its potency the living entity undergoes material existence.