Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 35
Sanskrit:
अन्नं च भैक्ष्यसम्पन्नं भुञ्जानस्य सरित्तटे ।मूत्रयन्ति च पापिष्ठा: ष्ठीवन्त्यस्य च मूर्धनि ॥ ३५ ॥
ITRANS:
annaṁ ca bhaikṣya-sampannaṁbhuñjānasya sarit-taṭemūtrayanti ca pāpiṣṭhāḥṣṭhīvanty asya ca mūrdhani
Translation:
When he was sitting on the bank of a river about to partake of the food that he had collected by his begging, such sinful rascals would come and pass urine on it, and they would dare to spit on his head.