Is a person held accountable for their prayer in a dream while not in a state of Wudu?

Among the conditions for the validity of prayer is purity from both minor and major ritual impurity, based on the Prophet's (peace and blessings be upon him) saying: "Allah does not accept a prayer without purification." Whoever prays intentionally without ablution has committed a grave sin and must repent and seek forgiveness. He is also obligated to make up for the prayers he performed without ablution.