ANSWER:

It is an issue of dispute and the safest is to pray it 2×2 as no one would say that you are wrong while if you pray it 4, the majority would say you are wrong for doing this. 

Someone asked about sunnah prayer you said that it should be 2+2 my question is that is it mandatory to pray 2+2 or we can pray 4 sunnah?

Prayer | February 7, 2018 9:05 pm
Previous

Is it correct to make dua between the break in Friday Khutbah i.e when the Imam sits down briefly between the Khutbah
Next

After you go to the gym to work out and you are all sweat, can you perform salat at that state or one is supposed to take ghusl.