One verse

Srimad Bhagavatam 10.9.23

10.9.23

पुरा नारदशापेन वृक्षतां प्रापितौ मदात् । नलकूवरमणिग्रीवाविति ख्यातौ श्रियान्वितौ ॥ २३ ॥

purā nārada-śāpena vṛkṣatāṁ prāpitau madāt nalakūvara-maṇigrīvāv iti khyātau śriyānvitau

purā
formerly
nārada-śāpena
being cursed by Nārada Muni
vṛkṣatām
the forms of trees
prāpitau
obtained
madāt
because of madness
nalakūvara
one of them was Nalakūvara
maṇigrīvau
the other was Maṇigrīva
iti
thus
khyātau
well known
śriyā anvitau
very opulent

In their former birth, these two sons, known as Nalakūvara and Maṇigrīva, were extremely opulent and fortunate. But because of pride and false prestige, they did not care about anyone, and thus Nārada Muni cursed them to become trees.