Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 67

Sanskrit:

यदसौ शास्त्रमुल्लङ्‌घ्य स्वैरचार्यतिगर्हित: ।अवर्तत चिरं कालमघायुरशुचिर्मलात् ॥ ६७ ॥

ITRANS:

yad asau śāstram ullaṅghyasvaira-cāry ati-garhitaḥavartata ciraṁ kālamaghāyur aśucir malāt

Translation:

This brāhmaṇa irresponsibly spent his long lifetime transgressing all the rules and regulations of the holy scripture, living extravagantly and eating food prepared by a prostitute. Therefore he is full of sins. He is unclean and is addicted to forbidden activities.

Purport:

Food prepared by an unclean, sinful man or woman, especially a prostitute, is extremely infectious. Ajāmila ate such food, and therefore he was subject to be punished by Yamarāja.