Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 11
Sanskrit:
चरन्ति ह्यवनौ कामं ब्राह्मणा भगवत्प्रिया: ।मादृशां ग्राम्यबुद्धीनां बोधायोन्मत्तलिङ्गिन: ॥ ११ ॥
ITRANS:
caranti hy avanau kāmaṁbrāhmaṇā bhagavat-priyāḥmādṛśāṁ grāmya-buddhīnāṁbodhāyonmatta-liṅginaḥ
Translation:
Brāhmaṇas who are exalted to the position of Vaiṣṇavas, the most dear servants of Kṛṣṇa, sometimes dress like madmen. Just to benefit materialists like us, who are always attached to sense gratification, and just to dissipate our ignorance, these Vaiṣṇavas wander on the surface of the globe according to their desire.