āvayoḥ - the two of Us; yudhyatoḥ - while fighting; asya - with him (Kālayavana); yadi - if; āgantā - comes; jarā-sutaḥ - the son of Jarā; bandhūn - Our relatives; haniṣyati - he will kill; atha vā - or else; neṣyate - he will take; sva - to his own; puram - city; balī - strong.

“If powerful Jarāsandha comes while We two are busy fighting Kālayavana, Jarāsandha may kill Our relatives or else take them away to his capital.