In a narration recorded by al-Tabarani the wording is: At that very moment Sayyiduna Uthman (may Allah be pleased with him) was on his knees, saying: "O Messenger of Allah! Will it be through wrongdoing and aggression?" Sayyidah Aishah (may Allah be pleased with her) says: My estimation is that the Prophet (peace and blessings be upon him) had told him that he would be killed. One of al-Tabarani's chains is hasan (good).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 14542