‏الزهد والرقائق‏ : Hadeeth No:7133 Abu Said al-Khudri reported Allaah's Messenger (sallAllaahu alayhi wa sallam) a hadith like this through another chain of transmitters....

‏الإيمان : Hadeeth No:166 It is narrated on the authority of 'Abdullah that the Prophet of Allaah (sallAllaahu alayhi wa sallam) observed: He who as in his heart the weight of a mustard seed of pride shall not enter Paradise....