Did 'Umar ibn al-Khaṭṭāb, may Allah be pleased with him, prostrate in front of the Church of the Holy Sepulchre upon entering it?

No evidence has been reported indicating that the Prophet, peace and blessings be upon him, entered a church. It is authentically reported that Umar said: "Do not learn the gibberish of the non-Arabs, and do not enter upon the polytheists in their churches." He also refused to enter for a meal prepared for him in a church.