One verse

Srimad Bhagavatam 10.12.26

10.12.26

तावत् प्रविष्टास्त्वसुरोदरान्तरं परं न गीर्णा: शिशव: सवत्सा: । प्रतीक्षमाणेन बकारिवेशनं हतस्वकान्तस्मरणेन रक्षसा ॥ २६ ॥

tāvat praviṣṭās tv asurodarāntaraṁ paraṁ na gīrṇāḥ śiśavaḥ sa-vatsāḥ pratīkṣamāṇena bakāri-veśanaṁ hata-sva-kānta-smaraṇena rakṣasā

tāvat
in the meantime
praviṣṭāḥ
all entered
tu
indeed
asura-udara-antaram
within the belly of the great demon
param
but
na gīrṇāḥ
they were not swallowed
śiśavaḥ
all the boys
sa-vatsāḥ
along with their calves
pratīkṣamāṇena
who was just waiting for
baka-ari
of the enemy of Bakāsura
veśanam
the entering
hata-sva-kānta-smaraṇena
the asura was thinking of his own dead relatives, who would not be satisfied unless Kṛṣṇa were dead
rakṣasā
by the demon

In the meantime, while Kṛṣṇa was considering how to stop them, all the cowherd boys entered the mouth of the demon. The demon, however, did not swallow them, for he was thinking of his own relatives who had been killed by Kṛṣṇa and was just waiting for Kṛṣṇa to enter his mouth.