Srimad Bhagavatam

References to text SB 1.2.8
SB 1.2.8: The occupational activities a man performs according to his own position are only so much useless labor if they do not provoke attraction for the message of the Personality of Godhead.

Text
“One’s relationship with the Supreme Personality of Godhead, activities in terms of that relationship, and the ultimate goal of life [to develop love of God] — these three subjects are explained in every aphorism of the Vedānta-sūtra, for they form the culmination of the entire Vedānta philosophy.”
Lord Caitanya in Five Features
CC 1.7.146
Rāmānanda Rāya continued, “ ‘My dear son of Kuntī, whatever you do, whatever you eat, whatever you offer in sacrifice, whatever you give in charity, and whatever austerities you perform, all the results of such activities should be offered to Me, Kṛṣṇa, the Supreme Personality of Godhead.’ ”
Talks Between Sri Caitanya Mahaprabhu and Ramananda Raya
CC 2.8.60
“ ‘A person who properly performs his regulative duties according to varṇa and āśrama but does not develop his dormant attachment for Kṛṣṇa or awaken his taste for hearing and chanting about Kṛṣṇa is certainly laboring fruitlessly.’ ”
How Pradyumna Misra Received Instructions from Ramananda Raya
CC 3.5.10