I put on Ihram for 'Umra and I am in this state as you see (with dyed beard and head and a cloak over me). He (the Holy Prophet) said: Take off the cloak and wash the yellowness and do in your 'Umra what you do in Hajj.  

أَنَّ رَجُلاً أَتَى النَّبِيَّ ﷺ وَهُوَ بِالْجِعْرَانَةِ قَدْ أَهَلَّ بِالْعُمْرَةِ وَهُوَ مُصَفِّرٌ لِحْيَتَهُ وَرَأْسَهُ وَعَلَيْهِ جُبَّةٌ فَقَالَ يَا رَسُولَ اللَّهِ إِنِّي أَحْرَمْتُ بِعُمْرَةٍ وَأَنَا كَمَا تَرَى فَقَالَ انْزِعْ عَنْكَ الْجُبَّةَ وَاغْسِلْ عَنْكَ الصُّفْرَةَ وَمَا كُنْتَ صَانِعًا فِي حَجِّكَ فَاصْنَعْهُ فِي عُمْرَتِكَ  

[Machine] An Arab man came to the Messenger of Allah ﷺ while we were with him. He said, "O Messenger of Allah, I have entered into Ihram, and he (pointing to someone) is acting in a hypocritical manner and wearing a cloak made of wool and an 'Imamah (turban)." The Messenger of Allah ﷺ said to him, "Remove your 'Imamah and garment, and wash off this yellowness from you. And do what you would have done in your Hajj for your 'Umrah."  

جَاءَ أَعْرَابِيٌّ إِلَى رَسُولِ اللهِ ﷺ وَنَحْنُ عِنْدَهُ فَقَالَ يَا رَسُولَ اللهِ إِنِّي أَهْلَلْتُ وَهُو مُتَخَلِّقٌ وَعَلَيْهِ جُبَّةٌ مِنْ صُوفٍ وَعِمَامَةٌٌ فَقَالَ لَهُ رَسُولُ اللهِ ﷺ انْزَعْ عِمَامَتَكَ وَقَمِيصَكَ وَاغْسِلْ هَذِهِ الصُّفْرَةَ عَنْكَ وَمَا كُنْتَ صَانِعًا فِي حَجِّكَ فَاصْنَعْهُ فِي عُمْرَتِكَ  

"A man came to the Messenger of Allah when he was in Al-Jirranah wearing a Jubnah, and having applied Khauq to his beard and head. He said: 'O Messenger of Allah! I have entered Ihram for 'Umrah and I am as you see.' He said: 'Take off the Jubbah and wash off the perfume, and whatever you would do for Hajj, do it for 'Umrah.''' (Using translation from Nasāʾī 2710)  

أَتَى رَسُولَ اللهِ ﷺ بِالْجِعْرَانَةِ رَجُلٌ وَعَلَيْهِ جُبَّةٌ وَهُو مُصْفَرٌ لِحْيَتُهُ وَرَأْسُهُ فَقَالَ يَا رَسُولَ اللهِ إِنِّي أَحْرَمْتُ وَأَنَا كَمَا تَرَى قَالَ اغْسِلْ عَنْكَ الصُّفْرَةَ وَأنْزَعُ عَنْكَ الْجُبَّةَ وَمَا كُنْتَ صَانِعًا فِي حَجَّتِكَ فَاصْنَعْهُ فِي عُمْرَتِكَ  

"A man came to the Messenger of Allah when he was in Al-Jirranah wearing a Jubnah, and having applied Khauq to his beard and head. He said: 'O Messenger of Allah! I have entered Ihram for 'Umrah and I am as you see.' He said: 'Take off the Jubbah and wash off the perfume, and whatever you would do for Hajj, do it for 'Umrah.''' (Using translation from Nasāʾī 2710)  

أَتَى رَسُولَ اللهِ ﷺ رَجُلٌ وَهُوَ بِالْجِعِرَّانَةِ وَعَلَيْهِ جُبَّةٌ وَهُوَ مُصَفِّرٌ لِحْيَتَهَ وَرَأْسَهُ قَالَ يَا رَسُولَ اللهِ إِنِّي أَحْرَمْتُ بِعُمْرَةٍ وَأَنَا كَمَا تَرَى قَالَ «انْزِعْ عَنْكَ الْجُبَّةَ وَاغْسِلْ عَنْكَ الصُّفْرَةَ وَمَا كُنْتَ صَانِعًا فِي حَجِّكَ فَاصْنَعْهُ فِي عُمْرَتِكَ»