‏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....

‏البيوع : Hadeeth No:3829 This hadith has been narrated on the authority of Sufyan b. Abu Zuhair al-Shana'i....