The Ramban says that Sara Imenu afflicted Hagar and therefore, when we don’t behave properly, we will be afflicted by Yishmoel, so the Baal Haturim says at the end of Chayeh Sarah, that Moshiah cannot come until he is destroyed.
The Ramban says that Sara Imenu afflicted Hagar and therefore, when we don’t behave properly, we will be afflicted by Yishmoel, so the Baal Haturim says at the end of Chayeh Sarah, that Moshiah cannot come until he is destroyed.