Mahabharata 13.18.21

अजरश्चामरश्चैव भविता दुःखवर्जितःसाम्यं समस्तु ते सौख्यं युवयोर्वर्धतां क्रतुः

ajaraścāmaraścaiva bhavitā duḥkhavarjitaḥsāmyaṃ samastu te saukhyaṃ yuvayorvardhatāṃ kratuḥ

Our plain-language meaning of this verse is waiting for scholar review.