Kansa informed by Nārada of the existence of Krishna and Balarāma; he sends Kesin to destroy them and Akrura to bring them to Mathura - Verse 9
Vishnu Purana (GRETIL; M. M. Pathak critical edition) · 4 · Verse 15.9
Sanskrit Original
तच च रूपम उत्फुल्लपद्मदलामलाक्षम अत्युज्ज्वलपीतवस्त्रधार्य अमलकिरीटकेयूरकटकोपशोभितम उदारपीवरचतुर्बाहुशङ्खचक्रगदाधरम अतिप्रौढवैरानुभावाद अटनभोजनस्नानासनशयनादिष्व अशेषावस्थान्तरेषु नैवापययाव अस्यात्मचेतसः।।
tac ca rūpam utphullapadmadalāmalākṣam atyujjvalapītavastradhāry amalakirīṭakeyūrakaṭakopaśobhitam udārapīvaracaturbāhuśaṅkhacakragadādharam atiprauḍhavairānubhāvād aṭanabhojanasnānāsanaśayanādiṣv aśeṣāvasthāntareṣu naivāpayayāv asyātmacetasaḥ||
That form, adorned with a blooming lotus-like face, brilliant yellow garments, and an immaculate crown, is embellished with beautiful armlets and bracelets. With four strong arms holding a conch, discus, and mace, he remains unaffected by the various states of existence, including eating, bathing, sitting, and lying down.