The Yemeni Congregation for Reform, frequently called al-Islah (pronounced [alʔisˤlaːħ]; Arabic: التجمع اليمني للإصلاح at-Tajammu’u al-Yamanī lil-Iṣlāḥ), is a Yemeni Islamist party founded in 1990 by Abdullah ibn Husayn al-Ahmar, Ali Mohsen al-Ahmar, Abdul Majeed al-Zindani, Mohammed al-Yadumi and Yahya Rassam.