For Jain monks and nuns, your sentence is essentially correct in spirit, but it needs a small but important clarification.

1. For monks and nuns (sādhus–sādhvīs)

- They take the mahāvrata of complete ahiṁsā – no intentional violence to any living being. - They are not allowed to hit back or injure even in self‑defense. If attacked, their ideal response is endurance (sahanshakti), avoidance, and acceptance of the situation, not retaliation. - Their body is not “theirs” anymore; they have renounced it for dharma. So even to protect their own body, they cannot choose an act that deliberately harms another jīva. ( jainknowledge.com)

1. For lay Jains (householders)

- The ideal is still non‑violence, but scriptures recognize unavoidable, limited violence in worldly life, including virodhi hiṁsā (violence in self‑defense or protection). This is tolerated as a last resort, never glorified, and should be minimized and followed by repentance (pratikramaṇ). ( jainknowledge.com)

So, refined statement:

• Monks and nuns: do not intentionally commit violence, even for self‑defense.
• Householders: should avoid violence, but if they are forced into self‑defense to prevent grave harm, it is treated as unavoidable himsā, not as dharmic heroism.

You can read more about hiṁsā, self‑defense and Jain ethics here and about types of hiṁsā here .