‏اللباس والزينة‏ : Hadeeth No:5244 Jabir b. 'Abdullah reported that Abu Qubafa was led (to the andience of the Prophet) on the day of the Conquest of Mecca and his head and beard were white like hyssop, whereupon Allaah's Messenger (sallAllaahu alayhi wa sallam) said: Change it with something but avoid black....

‏الصيام : Hadeeth No:2572 Abu Sa'id al-Khudri (Allaah be pleased with him) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: He who observes fast for a day in the way of Allaah He would remove his face from the Hell to the extent of seventy years' distance....