 this was the morality of the sassanid dynasty the kings and their sons and this policy was adopted by ardashir bin babak and it remained with them until the reign of khosrau i parviz who changed it. among the things that shiruyeh his son used to do was to mention his faults and shortcomings. we have said that it is the right of the king that no one should stay with him for long. if someone makes a mistake in that then the kings permission for him to leave should notice him. if he knows that and does not leave he is one of those who need to be disciplined and the one who connected him to the king was unjust to him and to himself.
وعلى هذا كانت أخلاق آل ساسان من الملوك وأبنائهم، وبهذه السياسة أخذهم أردشير بن بابك، فلم تزل فيهم حتى ملك كسرى أبرويز، فغيرها؛ فكان مما اعتد عليه شيرويه، ابنه، في ذكر مثالبه ومعايبه وقد قلنا إن من حق الملك أن لا يطيل أحد عنده القعود؛ فإن اخطأ مخطيء في ذلك، فمن إذن الملك له بالانصراف أن يلحظه. فإذا عرف ذلك فلم يقم، كان ممن يحتاج إلى أدب، وكان الذي وصله بالملك ظالما له ولنفسه.