The ma'mum behind an imam who rushes through the recitation: is he allowed to separate?

Question : If a person prays with this imam who rushes so fast that the ma'mum is unable to do what is obligatory, specifically the tranquility (tuma'ninah), is he allowed to leave and separate, meaning to detach from the imam?

Answer : The answer is yes, rather, it is obligatory for him to separate from the imam, whether in the tarawih prayers or in the obligatory prayers. Sometimes in the obligatory prayer, you find a person leading the people in prayer, and you have missed the prayer and join them, and he is rushing so fast that you are unable to keep up with him in performing the obligatory act. In this case, we say: separate, separate, and pray alone and complete it by yourself. Because it is not possible now to combine following the imam with performing the pillar, which is the tranquility. So one of the two things must be done. And since the Prophet (peace and blessings be upon him) approved of the man separating because of the imam's lengthening of the prayer, then approval of separating in order to perform the pillar is all the more so.