Bhagavatapurana 10.55.39

39. On hearing of Pradyumna's return, the citizens of Dwaraka said to one another, "What wonder! It is like the return of one from the jaws of death! Fortunately the boy has come back."

40. It is no wonder that his mothers often mistook Pradyumna for Krishna Himself on account of his close resemblance: for, even a passing memory of Kama kindles passion: and it is then but natural that other women did so, when (he) the exact likeness of the original (Sri Lakshmi's Lord), is directly within the range of their eyes.