Is it permissible to fast the six days of Shawwal before making up missed fasts of Ramadan ?

It’s obligatory to give precedence to the Qaḍāʾ because it is of greater importance and the Prophet ﷺ said, “Whoever fasts Ramaḍān, then, follows it up with (fasting) the six days of Shawwāl” so, the women who fasted the six before completing (the Qaḍāʾ of) Ramdan didn’t follow it up; she must start (making it up). (Likewise) the man also starts with the Qaḍāʾ of Ramaḍān then he fasts the six.