Śrīmad-Bhāgavatam · Text 10.7.9
Who is speaking and story frame
ऊचुरव्यवसितमतीन् गोपान्गोपीश्च बालका: ।
रुदतानेन पादेन क्षिप्तमेतन्न संशय: ॥ ९ ॥
ūcur avyavasita-matīn
gopān gopīś ca bālakāḥ
rudatānena pādena
kṣiptam etan na saṁśayaḥ
The assembled cowherd men and ladies began to contemplate how this thing had happened. “Is it the work of some demon or evil planet?” they asked. At that time, the small children present asserted that the cart had been kicked apart by the baby Kṛṣṇa. As soon as the crying baby had kicked the cart’s wheel, the cart had collapsed. There was no doubt about it.
Read Śrīla Prabhupāda's purport on Vedabase.io