What is the ruling regarding witnesses who testify to the same act of *zina* (fornication/adultery) occurring in different specified locations?

Primary text

If two witnesses testify that *zina* occurred in one specific house, and two other witnesses testify that *zina* occurred in another house, all four witnesses are considered slanderers (*qadhifah*) and must receive the prescribed punishment (*hadd*). This view is held by Malik and Al-Shafi'i. The evidence is that four complete witnesses were not established for a single act of *zina*, thus the penalty applies, similar to the case where only two witnesses testify alone. For the accused, no punishment is due in this scenario according to the main view.