CC Ādi 16.80

‘ihāṅ viṣṇu-pāda-padme gaṅgāra utpatti’
virodhālaṅkāra ihā mahā-camatkṛti
Word for word: 
ihāṅ — in this connection; viṣṇu-pāda-padme — -in the lotus feet of Lord Viṣṇu; gaṅgāra — of mother Ganges; utpatti — beginning; virodha — contradiction; alaṅkāra — literary decoration; iha — it; mahā — very great; camatkṛti — wonder.
Translation: 
“The existence of mother Ganges begins from the lotus feet of the Lord. Although this statement that water comes from a lotus flower is a contradiction, in connection with Lord Viṣṇu it is a great wonder.