Muhammad bin Sa'd (may Allah have mercy on him) narrates from al-Waqidi that a woman of Banu Qurayzah dropped a millstone on Khallad bin Suwayd bin Tha'labah al-Khazraji (may Allah be pleased with him) and crushed his head. When this was mentioned before him (peace and blessings be upon him), he said: "He has the reward of two martyrs." Then, in return for that, the Messenger of Allah (peace and blessings be upon him) had that woman killed. Khallad bin Suwayd (may Allah be pleased with him) was present at Badr, Uhud, the Trench and Banu Qurayzah.
This is from the statement of Ibn Ishaq and al-Waqidi, and it is munqati' (its chain is broken).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18109