Sayyiduna Ammar bin Yasir (may Allah be pleased with him) said: I came to my family from a journey, and they applied saffron to me. When morning came, I went to the Messenger of Allah (peace and blessings be upon him) and greeted him, but he (peace and blessings be upon him) did not welcome me nor show pleasure at me, and he said: "Go and wash this off yourself." I washed it off myself, but some trace of it remained. I greeted him, but he did not welcome me nor show pleasure at me, and he said: "Go and wash this off yourself." So I washed it off again, then I came to the Messenger of Allah (peace and blessings be upon him) and greeted him; he returned my greeting and welcomed me. Then he (peace and blessings be upon him) said: "The angels do not attend the funeral of a disbeliever with goodness, nor the one smeared with saffron, nor the junub," and he (peace and blessings be upon him) granted the junub a concession that when he intends to eat or sleep, he should perform ablution.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 982