Is it required to complete making up the fasts of Ramadan before fasting six days in Shawwal?

Question:
He says: Honorable Shaykh, may Allah grant you success, if a person is fasting six days in the month of Shawwal and has fasts from Ramadan that he must make up, is it required that he fast the make-up fasts first and then the voluntary ones, or is that not required?

Answer:
Completing the make-up fasts and then fasting the six is undoubtedly better. However, if the Prophet (peace and blessings be upon him) fasted the six while the make-up fasts were still within the permissible time and he fasted them later, then that is permissible, if Allah wills. Yes.