There is nothing wrong with Muslims praying in a church if it is free of images and statues, whether that is the Jumu`ah prayer or any other prayer. It is disliked for Muslims to pray in a church if there are images or statues in it.

It is not permissible to combine `Asr with Jumu`ah in the cases where it is permissible to combine Dhuhr and `Asr. If a traveler passes through a town and prays Jumu`ah with them, it is not permissible for him to combine `Asr with it.

The most correct view is that of the majority of scholars, that the time for Jumu’ah is the same as the time for Zhuhr, and undoubtedly this is more on the safe side.

Many hadiths have been narrated from the Prophet (peace and blessings of Allah be upon him) which explain the virtues of Jumu`ah prayer. Please see below.

Doing Ghusl on Fridays is Sunnah but not obligatory according to the majority of jurists. This Ghusl is prescribed for those who come to Jumu`ah prayers whether men or women.

If there is a mosque in which Jumu`ah prayers are held, then you must pray with them and it is not permissible for you to introduce another Jumu`ah prayer.