The slave in voluntary prayers and other than the obligatory prayers has the status of a slave from whom he has been freed, or in the status of a mukatib, or in the status of a manager, for in these there are scents of freedom that are not for the slave who does not have these conditions. The Sunnahs of the voluntary prayers are in the state of servitude in them are the status of the mukatib and the manager, and the voluntary ones are not Sunnah. That is, it is not his actions, may God’s prayers and peace be upon him, always, nor his utterances, appointing him to the status of a slave from whom he has been freed. He is free insofar as he has freed what he has freed, and it is a slave insofar as what remains of him has not been freed from what remains. This is a state of slavery between the slavery of necessity and the slavery of choice, like the Sunnahs between the obligatory duties. And the voluntary prayers are the same