Narrated Anas ibn Malik:

A man came to the Messenger of Allah ﷺ and he had the mark of yellowness (of saffron). The Prophet (peace be upon him rarely mentioned a thing which he disliked before a man. When he went away, he said: Would that you tell this man that he should wash this off him.

حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ عُمَرَ بْنِ مَيْسَرَةَ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، حَدَّثَنَا سَلْمٌ الْعَلَوِيُّ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ رَجُلاً، دَخَلَ عَلَى رَسُولِ اللَّهِ ﷺ وَعَلَيْهِ أَثَرُ صُفْرَةٍ - وَكَانَ النَّبِيُّ ﷺ قَلَّمَا يُوَاجِهُ رَجُلاً فِي وَجْهِهِ بِشَىْءٍ يَكْرَهُهُ - فَلَمَّا خَرَجَ قَالَ
" لَوْ أَمَرْتُمْ هَذَا أَنْ يَغْسِلَ هَذَا عَنْهُ " .