Musannaf Ibn Abi Shaybah 29896 — Killing a thief

Hujayr bin al-Rabi' said: I asked Sayyiduna Imran bin Husayn (may Allah be pleased with him): "What is your view: if someone comes in upon me intending to take my life and my property, what should I do?" He said: "If someone came in upon me intending to take my life and my property, my view is that killing him would have become lawful for me."