SB 10.34.26

tayor nirīkṣato rājaṁs
 tan-nāthaṁ pramadā-janam
krośantaṁ kālayām āsa
 diśy udīcyām aśaṅkitaḥ
Synonyms: 
tayoḥ — the two of Them; nirīkṣatoḥ — as They looked on; rājan — O King; tat-nātham — having Them as their Lords; pramadā-janam — the assemblage of women; krośantam — crying out; kālayām āsa — he drove; diśi — in the direction; udīcyām — northern; aśaṅkitaḥ — without fear.
Translation: 
O King, even as the two Lords looked on, Śaṅkhacūḍa brazenly began driving the women off toward the north. The women, who had accepted Kṛṣṇa and Balarāma as their Lords, began to cry out to Them.
Purport: 

According to Śrīla Viśvanātha Cakravartī, the demon Śaṅkhacūḍa shook a large stick at the beautiful young girls, thus frightening them and driving them toward the north. He did not actually touch them, as is corroborated by the following verse.