ANSWER:
This is your choice.
However, to be included in the hadith of 12 rakha sunnah (house in Paradise), you should pray 2+2 before dhuhr and 2 afterwards.
ANSWER:
This is your choice.
However, to be included in the hadith of 12 rakha sunnah (house in Paradise), you should pray 2+2 before dhuhr and 2 afterwards.