Explanation

masjid al-zirar was a mosque built in Madinah by a monk named Abu Amir and some 12 hypocrites.

masjid al-zirar was built close to masjid Quba

Masjid e Zarar has been mentioned in Surah e Tobah of the Holy Quran.

in October 630 CE Prophet Muhammad (SAAW) had destroyed while he was returning from the Expedition to Tabouk 

Muhammad was told that the Mosque was promoting anti-Islamic elements