Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 33

Sanskrit:

नाहं हालाहलं मन्ये विषं यस्य प्रतिक्रिया ।ब्रह्मस्वं हि विषं प्रोक्तं नास्य प्रतिविधिर्भुवि ॥ ३३ ॥

ITRANS:

nāhaṁ hālāhalaṁ manyeviṣaṁ yasya pratikriyābrahma-svaṁ hi viṣaṁ proktaṁnāsya pratividhir bhuvi

Translation:

I do not consider hālāhala to be real poison, because it has an antidote. But a brāhmaṇa’s property, when stolen, can truly be called poison, for it has no antidote in this world.

Purport:

One who takes a brāhmaṇa’s property, thinking to enjoy it, has actually taken the most deadly poison.