Is prayer in the mosque an individual obligation (fard ayn) or a communal obligation (fard kifayah)? And what is the reason for the scholars' disagreement on this matter?

The scholars hold various opinions regarding the ruling on congregational prayer in the mosque. Some believe it is an individual obligation (fard ayn), others that it is a communal obligation (fard kifayah), and still others that it is merely recommended (mustahabb) and not an obligation. The reason for their disagreement stems from their differing interpretations of the religious texts. This matter is broad enough to accommodate these views, and whoever is correct in their opinion receives two rewards, while whoever errs receives one reward. The layperson should follow whoever they trust for their knowledge and piety.