It is narrated from Sayyiduna Ya'la bin Murrah (may Allah be pleased with him) that he came to the Prophet (peace and blessings be upon him) with a yellow trace of saffron on him, and the Prophet (peace and blessings be upon him) said to him: "Wash this off yourself, then wash it off, and do not do it again." He said: He washed it off and did not do it again.
Hadith Referenceالمعجم الكبير للطبراني / باب الياء / 18889