Srimad Bhagavatam Canto 11, Chapter 07, Text 05

SB 11.7.5

na vastavyam tvayaiveha
 maya tyakte mahi-tale
jano ’bhadra-rucir bhadra
 bhavisyati kalau yuge
My dear Uddhava, you should not remain here on the earth once I have abandoned this world. My dear devotee, you are sinless, but in Kali-yuga the people will be addicted to all types of sinful activities; therefore do not stay here.
In this Age of Kali, human beings are totally unaware that the Supreme Personality of Godhead comes personally to the earth to manifest His transcendental pastimes as they are enacted in the spiritual world. Heedless of the authority of the Personality of Godhead, the fallen souls of Kali-yuga become engulfed in bitter quarrel and cruelly harass one another. Because people in Kali-yuga are addicted to polluted, sinful activities, they are always angry, lusty and frustrated. In Kali-yuga the devotees of the Personality of Godhead, who are engaged in the ever-increasing loving service of the Lord, should never be attracted to living on the earth, the population of which is covered in the darkness of ignorance and devoid of any loving relationship with the Lord. Thus Lord Krsna advised Uddhava not to remain on the earth in Kali-yuga. In fact, in Bhagavad-gita the Lord advises all living entities that they should never remain anywhere within the material universe — during any age. Therefore every living being should take advantage of the pressures of Kali-yuga to understand the overall useless nature of the material world and surrender himself at the lotus feet of Lord Krsna. Following in the footsteps of Sri Uddhava, one should surrender to Krsna and go back home, back to Godhead.
Srimad Bhagavatam Canto 11, Chapter 07, Text 04
Srimad Bhagavatam Canto 11, Chapter 07, Text 06