Dhammapada · 16.1
Ayoge yuñjamattānaṃ, yogasmiñca ayojayaṃ;Atthaṃ hitvā piyaggāhī, pihetattānuyoginaṃ.
Ayoge yunjamattanam, yogasminca ayojayam; Attham hitva piyaggahi, pihetattanuyoginam.
One who applies oneself to what is not one's business and fails to apply oneself to what is — abandoning the true aim, grasping the beloved — ends up envying those who pursue their own genuine good.
— Dhammapada 16.1
Source: Pali text from the Khuddaka Nikāya of the Pali Canon (oldest extant Buddhist scripture, compiled c. 3rd century BCE). Public-domain English readings drawn from F. Max Müller's translation in Sacred Books of the East, Vol X (1881) and the Buddhist Publication Society's freely-licensed Acharya Buddharakkhita rendering.