Ahmad transmitted on the authority of `Ali (RAA):

"The earth (dust) has been made for me as a means for purification."

وَعَنْ عَلِيٍّ ‏- رضى الله عنه ‏- عِنْدَ أَحْمَدَ: { وَجُعِلَ اَلتُّرَابُ لِي طَهُورًا } [1]‏ .‏