Ya'la b. Umayya reported on the authority of his father (Allah be pleased with them) that a person came to the Messenger of Allah ﷺ as he was at Ji'rana and he (the person) had been putting on a cloak which was perfumed, or he (the narrator) said: There was a trace of yellowness on it. He said (to the Holy Prophet): What do you command me to do during my Umra? (It was at this juncture) that the revelation came to the Messenger of Allah ﷺ and he was covered with a cloth, and Ya'la said: Would that I see revelation coming to the Messenger of Allah ﷺ. He (Hadrat 'Umar) said: Would it please you to see the Messenger of Allah ﷺ receiving the revelations 'Umar lifted a corner of the cloth and I looked at him and he was emitting a sound of snorting. He (the narrator) said: I thought it was the sound of a camel. When he was relieved of this he said: Where is he who asked about Umra? When the person came, the Prophet ﷺ said: Wash out the trace of yellowness, or he said: the trace of perfume and put off the cloak and do in your 'Umra what you do in your Hajj.
The hadith also shows us how important it is for us to follow instructions given by Allah through His Messenger ﷺ so that we can gain maximum benefit from these acts of worship and devotion towards Him. It also teaches us how important it is for us to take care when dressing up for religious occasions such as `Umrah or Hajj so that they are performed with utmost respect and reverence towards Allah Almighty.