I prayed Friday prayers where there are more than one Friday prayers within one Farsakh because I did not know about the ruling that there has to be minimum distance. Do I need to perform Qada Zuhr for those Friday prayers?
If you performed Friday Prayer with the valid Friday Prayer that started their Takbiratul Ehraam before other Friday prayers in the radius of one Farrakhan, then your prayer is valid. If you started Takbiratul Ehraam after any other valid Friday Prayer then you need to perform Dhuhr or it's Qadha if it's time has gone.
'Wassalam.