Śrīmad-Bhāgavatam · Text 11.11.22
यद्यनीशो धारयितुं मनो ब्रह्मणि निश्चलम् ।
मयि सर्वाणि कर्माणि निरपेक्ष: समाचर ॥ २२ ॥
yady anīśo dhārayituṁ
mano brahmaṇi niścalam
mayi sarvāṇi karmāṇi
nirapekṣaḥ samācara
My dear Uddhava, if you are not able to free your mind from all material disturbance and thus absorb it completely on the spiritual platform, then perform all your activities as an offering to Me, without trying to enjoy the fruits.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.