Muhammad says that it is permissible to pray in a Jewish place of worship.

Hasan considered it disliked to pray in the places of worship of non-Muslims, while Muhammad declared it permissible.

4953 - And that Muhammad did not see any harm in it.

Ibn Abbas (may Allah be pleased with them) said that if there are images in a church, then it is disliked to pray there.

Hazrat Usman bin Abi Hind says that I saw Hazrat Umar bin Abdul Aziz standing on a church leading people in prayer, while the people were standing below him.

Hazrat Ismail bin Rafi says that I saw Hazrat Umar bin Abdul Aziz leading prayers in a church in the land of Shaam.

Hazrat Taliq bin Ali (may Allah be pleased with him) says that we came to the service of the Holy Prophet (peace and blessings be upon him) as a delegation. We said, "In our land, there is a church. We request the leftover water from your ablution to purify it." The Prophet had water brought, performed ablution, rinsed his mouth, and placed the leftover water in our vessel. He then said, "Take it with you. When you reach your area, demolish your church, sprinkle this water on that place, and make that place a mosque."

Hazrat Azhar Hirazi narrates that Hazrat Abu Musa prayed in a church in Damascus, which is called the Church of John.

Hasan considered it undesirable for a person to lean against a wall during obligatory prayer without excuse. However, he deemed it permissible to do so in voluntary prayers.

Ibrahim considered it disliked for a person to lean against a wall during prayer, and he also considered it disliked to raise both feet without an excuse.