Agar musafir ko zohar ki jamaat mil jaye lekin uski shuru ki char rakaat chhoot jaye to kab pade?

Musafir ko sunnat me koi qasr nahi. Lihaza agar zohar ki farz jamat se padh liye or shuru ki 4 sunnat naa padh paya to bad me padhe. 

Ab raha ye ki ye sunnat, 2 rakat sunnat ke bad padhe ya pehle. Toh isme ikhtiyar hai, Ki bad me pade ya pehle or behtar yahi hai ki, pehle 2 sunnat padhe or 4 rakat jo chhut gai wo bad me.