Bhagavatapurana 10.30.31

10.30.31

imāny adhika-magnāni padāni vahato vadhūm /
gopyaḥ paśyata kṛṣṇasya bhārākrāntasya kāminaḥ /
atrāvaropitā kāntā puṣpa-hetor mahātmanā //

[(1) These foot-prints are deeper in impression as He bore the damsel, O Gopis; look at them how deep are the impressions, of the love-stricken Krishna under a heavy load? Here it appears He has set her down for the sake of flowers (for the purpose of putting flowers into her braid).]