[22].Surah Al-Hajj [The Pilgrimage]: Ayat 39-40

Ayat 39. Permission to fight is given to those (i.e. believers against disbelievers), who are fighting them, (and) because they (believers) have been wronged, and surely, Allah is Able to give them (believers) victory.

Ayat 40. Those who have been expelled from their homes unjustly only because they said: "Our Lord is Allah." - For had it not been that Allah checks one set of people by means of another, monasteries, churches, synagogues, and Masjids, wherein the Name of Allah is mentioned much would surely have been pulled down. Verily, Allah will help those who help His (Cause). Truly, Allah is All-Strong, All-Mighty.

[Tafseer] To those against whom war is made, permission is given (to fight), because they are wronged;- and verily, Allah is most powerful for their aid;- Several translators have failed to notice that yuqa taluna is in the passive voice, "against whom war is made"-not "who take arms against the unbelievers" as Sale translates it. The clause "and verily... their aid" is parenthetical. Verse 40 connects on with "they are wronged". The wrong is indicated: 'driven by persecution from their home, for no other reason than that they worshipped the One True God 1 . This was the first occasion on which fighting-in self-defense-was permitted. This passage therefore undoubtedly dates from Madinah. (They are) those who have been expelled from their homes in defiance of right,- (for no cause) except that they say, "our Lord is Allah.. Did not Allah check one set of people by means of another, there would surely have been pulled down Masjid and other place of worships, in which the name of Allah is commemorated in abundant measure. Allah will certainly aid those who aid his (cause);- for verily Allah is full of Strength, Exalted in Might, (able to enforce His Will).  To allow a righteous people to fight against a ferocious and mischief-loving people was fully justified. But the justification was far greater here, when the little Muslim community was not only fighting for its own existence against the Makkan Quraish, but for the very existence of the Faith in the One True God. They had as much right to be in Makkah and worship in the Kabah as the other Quraish; yet they were exiled for their Faith. It affected not the faith of one particular people.

Hazrat Abu Hurairah (May Allah be pleased with him) reported: The Messenger of Allah [SAWW](PBUH) said, "The dearest parts on the face of the earth near Allah are its Masjid, and the most hated parts near Allah are its markets.'' [Muslim Book 04, Chapter 92, Hadith # 1416] Lesson : as mentioned above in Surah Al-Hajj Ayat 40."Allah checks one set of people by means of another, monasteries, churches, synagogues, and Masjids, wherein the Name of Allah is mentioned much would surely have been pulled down." The superiority of the mosques is self evident. People pray and worship Allah in the mosques and recitation of Qur'an goes on there. While in the market places people forget to remember Allah and indulge in such forbidden acts as fraud, lies and gossip. In fact, it is not the place itself which is disliked but the bad things which are bound to happen in it, they are not the places of choice and are not liked.