Your statement is basically correct for Jain monks and nuns.

In Jain Dharma:

• Monks and nuns (sādhus–sādhvīs) take the mahāvrata of ahiṁsā (great vow of non‑violence).
• Under this vow, they do not commit physical violence even for self‑defense.
• They accept that if harm comes to their body, it is the result of past karma, and they should endure it with equanimity rather than harm another living being.
• They will try to avoid danger by foresight, calm speech, and moving away, but they will not hit back, use weapons, or intentionally injure anyone.

This is stricter than the rule for householders:

• Lay Jains (śrāvaks–śrāvikās) are allowed limited, defensive violence in extreme situations (real threat to life etc.), and even then it should be minimal and followed by repentance.
• But for ascetics, even self‑defense is not allowed; complete non‑violence is their ideal and discipline. ( jainknowledge.com)

You can read a related discussion here