Hadith 3509
Narrated Wathila bin Al-Asqa: Allah's Apostle said, "Verily, one of the worst lies is to claim falsely to be the son of someone other than one's real father, or to claim to have had a dream one has not had, or to attribute to me what I have not said."
Hadith 3546
Narrated Hariz bin `Uthman: That he asked `Abdullah bin Busr (i.e. the companion of the Prophet), "Did you see the Prophet when he was old?" He said, "He had a few white hairs between the lower lip and the chin."