Procopius, Wars 1.24.32–37. For the possibility of Theodora's stirring remarks being an invention by Procopius (otherwise an unflattering chronicler of Theodora's life), see John Moorhead, Justinian (London/NY 1994), pp. 46–47, with a reference to J. Evans, "The 'Nika' rebellion and the empress Theodora", in: Byzantion 54 (1984), pp. 380–382.