‏الإيمان : Hadeeth No:241 It is narrated on the authority of 'Abdullah b. Mas'ud that the Prophet (sallAllaahu alayhi wa sallam) was asked about evil prompting, to which he replied: It is pure faith....

‏البيوع : Hadeeth No:3804 A hadith like this is reported on the authority of Abu Mas'ud through another chain of transmitters....