ما هو الدليل على صحة صلاة الجماعة خارج المسجد، وما ردكم على قول ابن القيم في ذلك، وما ردكم على أدلة المخالفين؟

There is no doubt about the validity of congregational prayer outside the mosque. However, the obligation to perform it in the mosque is a matter of strong disagreement. The majority of scholars did not obligate its performance in the mosque, while some Hanbalis did.

Arguments of those who obligate it: - The Prophet's intention to burn the houses of those who lagged behind from it. - The hadith of the blind man who found no concession for lagging behind. - The hadith: "There is no prayer for the mosque's neighbor except in the mosque."

Arguments of those who do not obligate it: - The Prophet's prayer in his house with his companions in congregation while he was ill, for if it were obligatory in the mosque, he would have commanded them to repeat the prayer there. - The hadith of the two men who prayed in their dwellings and the Prophet commanded them to repeat the prayer with the congregation in the mosque. - The hadith: "The earth has been made for me a place of prayer and a purifier." - The interpretation of the Prophet's intention to burn those who lagged behind as being a group of hypocrites. - The hadith of the blind man does not mean no concession absolutely, but rather with the attainment of virtue. - The hadith "There is no prayer for the mosque's neighbor except in the mosque" is weak. - Al-Bayhaqi's reliance on Anas's hadith that the Prophet, peace be upon him, prayed with them in his house.

Conclusion: Congregational prayer is valid everywhere, and the mosque is not designated for its performance. Nevertheless, the opinion of its obligation in the mosque is strong, more cautious, more absolving of responsibility, and contains great virtue.