Is 'Umrah valid if the pilgrim, during his first 'Umrah after puberty, experienced a wet dream while in the state of Ihram and, out of ignorance, did not perform Ghusl, with traces of the wet dream remaining on the Ihram garments? And is he obligated to repeat it if it is deemed invalid?

The circumambulation (Tawaf (definition)) of a person in a state of major ritual impurity (junub) is invalid according to the majority of scholars, because it is considered akin to prayer, based on the Prophet's (peace be upon him) saying: "Circumambulation of the House is prayer." Whoever circumambulates while in a state of junub must repeat their circumambulation and avoid the prohibitions of ihram (definition) if they had entered ihram for Umrah (definition) or Hajj, then complete their rituals.