Sahih Bukhari
Sahih Bukhari Volume 008, Book 073, Hadith Number 088.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 73. Good Manners and Form (Al-Adab)
Narated By Salim: That his father said; "When Allah's Apostle mentioned what he mentioned about (the hanging of) the Izar (waist sheet), Abu Bakr said, "O Allah's Apostle! My Izar slackens on one side (without my intention)." The Prophet said, "You are not among those (who, out of pride) drag their Izars behind them."