Histories

So they believed that it was Cyrus' son Smerdis who had been made king. For Prexaspes stoutly denied that he had killed Smerdis, since now that Cambyses was dead, it was not safe for him to say that he had slain the son of Cyrus with his own hands.

Cambyses being dead, the Magus, pretending to be the Smerdis of like name, Cyrus' son, reigned without fear for the seven months by which Cambyses had fallen short of reigning eight years.

In this time he benefitted all his subjects to such an extent that after his death all the Asiatics except the Persians wished him back; for he sent to every nation he ruled and proclaimed an exemption for three years from military service and from tribute.