‏الطهارة : Hadeeth No:458 Abu Huraira reported Allaah's Prophet (sallAllaahu alayhi wa sallam) as saying: When anyone wipes himself with pebbles (after answering the call of nature) he must make use of an odd number and when any one of you performs ablution he must snuff in his nose water and then clean it....

‏الصلاة : Hadeeth No:2006 This hadith is narrated on the authority of 'Ala' with the same chain of transmitters....