I missed Fajr Salaat. I made qadha of it after Zuhr Salaat.

Answer

If a person has no Qadha Salaat or he has, but not more than five, then it is not permissible for him to perform the Ada Salat (i.e. the Salaat of the present time) unless he first performs the five Qadha Salaat. Thus, if a person has no Qadha, but today missed Fajr Salaat, then it is not permissible for him to perform Zuhr first. He has to compulsorily perform the qadha of Fajr, then engage in Zuhr. If he did in fact perform Zuhr without first performing qadha of Fajr, then he should repeat the Salaat – first Fajr, then Zuhr.