One verse

Srimad Bhagavatam 10.85.47

10.85.47

श्रीभगवानुवाच आसन्मरीचे: षट् पुत्रा ऊर्णायां प्रथमेऽन्तरे । देवा: कं जहसुर्वीक्ष्य सुतं यभितुमुद्यतम् ॥ ४७ ॥

śrī-bhagavān uvāca āsan marīceḥ ṣaṭ putrā ūrṇāyāṁ prathame ’ntare devāḥ kaṁ jahasur vīkṣya sutaṁ yabhitum udyatam

śrī-bhagavān uvāca
the Supreme Lord said
āsan
there were
marīceḥ
of Marīci
ṣaṭ
six
putrāḥ
sons
ūrṇāyām
born of Ūrṇā (his wife)
prathame
in the first
antare
rule of Manu
devāḥ
demigods
kam
at Lord Brahmā
jahasuḥ
they laughed
vīkṣya
seeing
sutām
with his daughter (Sarasvatī)
yabhitum
to copulate
udyatam
prepared

The Supreme Lord said: During the age of the first Manu, the sage Marīci had six sons by his wife Ūrnā. They were all exalted demigods, but once they laughed at Lord Brahmā when they saw him preparing to have sex with his own daughter.