Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 3 years ago

The cause of the rift was the betrayal of Jewish leaders of that time and mischief they played against the Prophet Muhammad (SAWA) and the Muslims. They wanted to join the enemies of Islam instead of protecting Madina. They had secret ties with the enemies of Islam and Muslims to destroy the Muslim state in Madina.