What is the ruling on praying behind an imam who does not recite well and does not remain calm in his prayer?

Question:
This questioner says: I am coming from a journey with my companions, and when we performed the Maghrib prayer with the mosque congregation, we performed the 'Isha' prayer shortened. A person we did not know led us in prayer; he does not recite well and does not remain calm in his prayer. What is the ruling on our prayer?

Answer:
If he does not make a mistake in al-Fatihah that changes the meaning, and he does not rush through the prayer with severe haste such that he does not remain calm in ruku' or sujud, but he is quick without reaching the level of severe rushing, then the prayer is valid. The prayer is valid because you did not choose this situation and you were not aware of his condition. The prayer is valid, if Allah wills, provided there is no severe rushing and he does not make a mistake in al-Fatihah that changes the meaning. The prayer is valid, if Allah wills. Yes.