Mahabharata 1.147.23

तथापि तेषां दुःखेन परीतानां निशम्य तत्बालस्य वाक्यमव्यक्तं हर्षः समभवन्महान्

tathāpi teṣāṃ duḥkhena parītānāṃ niśamya tatbālasya vākyamavyaktaṃ harṣaḥ samabhavanmahān

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