The Great Epic of the Bhārata dynasty 2.36.2

2.36.2

keśavaṃ keśihantāramaprameyaparākramam |
pūjyamānaṃ mayā yo vaḥ kṛṣṇaṃ na sahate nṛpāḥ || 2 ||

"Vaisampayana said,--The mighty Bhishma ceased, having said this. Sahadeva then answered (Sisupala) in words of grave import, saying,--'If amongst ye there be any king that cannot bear to see Kesava of dark hue, the slayer of Kesi, the possessor of immeasurable energy, worshipped by me, this my foot is placed on the heads of all mighty ones (like him). When I say this, let that one give me an adequate reply. And let those kings that possess intelligence approve the worship of Krishna who is the preceptor, the father, the guru, and deserveth the Arghya and the worship (already offered unto him).'