Valmiki Ramayana Bala Kanda Sarga 73 Shloka 12
Original Shlokaदातृप्रतिग्रहीतृभ्यां सर्वार्था: प्रभवन्ति हि।।1.73.12।। स्वधर्मं प्रतिपद्यस्व कृत्वा वैवाह्यमुत्तमम्।
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सर्वार्था: all the ends, दातृप्रतिग्रहीतृभ्याम् through the giver and receiver, प्रभवन्ति हि takes place, उत्तमम् वैवाह्यम् excellent (auspicious) marriage, कृत्वा having performed, स्वधर्मम् own duty, प्रतिपद्यस्व fulfill.
The giver and the receiver, indeed, attain all ends. Fulfil your own duty by performing the auspicious marriage".