Mahabharata 13.14.12

शम्बरे निहते पूर्वं रौक्मिणेयेन धीमताअतीते द्वादशे वर्षे जाम्बवत्यब्रवीद्धि माम्

śambare nihate pūrvaṃ raukmiṇeyena dhīmatāatīte dvādaśe varṣe jāmbavatyabravīddhi mām

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