Caitanya-caritāmṛta 21.61
vismita hañā brahmā dvārīke kahilā ‘kaha giyā sanaka-pitā caturmukha āilā’
[vismita hanaa brahmaa dvaareeke kahilaa ‘kaha giyaa sanaka-pitaa chaturmukha aailaa’]
Blended reading (Sanskrit + English inline)
vismita hañā brahmā dvārīke kahilā ‘kaha giyā sanaka-pitā caturmukha āilā’
“When the doorman asked, ‘Which Brahmā?’ Lord Brahmā was surprised. He told the doorman, ‘Please go inform Lord Kṛṣṇa that I am the four-headed Brahmā who is the father of the four Kumāras.’
My note
Source: vedabase.io