Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 32

Sanskrit:

येनोपसृष्टात्पुरुषाल्लोक उद्विजते भृशम् ।न बुधस्तद्वशं गच्छेदिच्छन्नभयमात्मन: ॥ ३२ ॥

ITRANS:

yenopasṛṣṭāt puruṣālloka udvijate bhṛśamna budhas tad-vaśaṁ gacchedicchann abhayam ātmanaḥ

Translation:

A person who desires liberation from this material world should not fall under the control of anger because when bewildered by anger one becomes a source of dread for all others.

Purport:

A devotee or saintly person should not be dreadful to others, nor should anyone be a source of dread to him. If one treats others with nonenmity, then no one will become his enemy. There is the example, however, of Jesus Christ, who had enemies, and they crucified him. The demoniac are always present, and they find fault even in saintly persons. But a saintly person never becomes angry, even if there is very great provocation.