Bhagavad-gītā 3.20
BG 3.20
Open the full passageकर्मणैव हि संसिद्धिमास्थिता जनकादयः । लोकसंग्रहमेवापि सम्पश्यन्कर्तुमर्हसि ॥२०॥
Sanskrit
karmaṇaiva hi saṁsiddhim āsthitā janakādayaḥ loka-saṅgraham evāpi sampaśyan kartum arhasi
Translation
Kings such as Janaka attained perfection solely by performance of prescribed duties. Therefore, just for the sake of educating the people in general, you should perform your work.