إِنَّمَا ٱلْمُؤْمِنُونَ إِخْوَةٌ فَأَصْلِحُوا۟ بَيْنَ أَخَوَيْكُمْ ۚ وَٱتَّقُوا۟ ٱللَّهَ لَعَلَّكُمْ تُرْحَمُونَ Qur’an Al-Hujurat (49:10)Innam a almuminoona ikhwatun faa s li h oo bayna akhawaykum wa i ttaqoo All a ha laAAallakum tur h amoon a
The plural noun ikhwah ("brethren" or "brotherhood") has here, of course, a purely ideological connotation, comprising men and women alike; the same applies to the subsequent mention of "your two brethren".
The enforcement of the Muslim Brotherhood is the greatest social ideal of Islam. On it was based the Prophet's Sermon at his last pilgrimage, and Islam cannot be completely realised until this ideal is achieved.