The significance of Masjid Ejabah (also known as Masjid Mu’awiyah) is that it is the location where the Prophet (ﷺ) supplicated to Allah (ﷻ) for three things. Allah (ﷻ) answered two of his requests, but not the third. The Arabic word ‘ejabah’ in english closely means ‘responding’.
- Aamir bin Sa’ad (may Allah be pleased with him) reported on the authority of his father that: One day Allah’s Messenger (ﷺ) came from Aaliya and passed by the mosque of Banu Mu’awiyah. He went in and observed two rak’ahs there and we also observed prayer along with him and he made a long supplication to his Lord. He then turned to us and said:“I asked my Lord three things and He has granted me two but has withheld one. I asked my Lord that my Ummah should not be destroyed by famine and He granted me this. And I asked my Lord that my Ummah should not be destroyed by drowning (by deluge) and He granted me this. And I asked my Lord that there should be no bloodshed among the people of my Ummah, but He did not grant it.” [Muslim]
References: Pictorial History of Madinah Munawwarah – Dr.Muhammad Ilyas Abdul Ghani, AlMiskeenah.com