One verse

Srimad Bhagavatam 9.20.29

9.20.29

भरतस्य महत् कर्म न पूर्वे नापरे नृपा: । नैवापुर्नैव प्राप्स्यन्ति बाहुभ्यां त्रिदिवं यथा ॥ २९ ॥

bharatasya mahat karma na purve napare nrpah naivapur naiva prapsyanti bahubhyam tridivam yatha

bharatasya
of Maharaja Bharata, the son of Maharaja Dusmanta
mahat
very great, exalted
karma
activities
na
neither
purve
previously
na
nor
apare
after his time
nrpah
kings as a class
na
neither
eva
certainly
apuh
attained
na
nor
eva
certainly
prapsyanti
will get
bahubhyam
by the strength of his arms
tri-divam
the heavenly planes
yatha
as.

As one cannot approach the heavenly planes simply by the strength of his arms (for who can touch the heavenly planes with his hands?), one cannot imitate the wonderful activities of Maharaja Bharata. No one could perform such activities in the past, nor will anyone be able to do so in the future.