Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 27
Sanskrit:
तथा तदनुगा: सर्वे आत्मलिङ्गविपर्ययम् ।दृष्ट्वा विमनसोऽभूवन् वीक्षमाणा: परस्परम् ॥ २७ ॥
ITRANS:
tathā tad-anugāḥ sarveātma-liṅga-viparyayamdṛṣṭvā vimanaso ’bhūvanvīkṣamāṇāḥ parasparam
Translation:
When his followers also saw their identities transformed and their sex reversed, they were all very morose and just looked at one another.