‏الفضائل : Hadeeth No:5788 Jabir b. Samura was asked about the old age of Allaah's Prophet (sallAllaahu alayhi wa sallam). He said: When he oiled his head nothing was seen (as a mark of old age) and when he did not apply oil something (of the old age) became visible....

‏الحج : Hadeeth No:2695 'A'isha (Allaah be pleased with her) reported: I still seem to see the glisten- ing of musk (in the parting of the head) of the Messenger of Allaah (sallAllaahu alayhi wa sallam) while he was in the state of Ihram....