Sunan At-Tirmidhi

Al-Harith bin Suwaid said:"" 'Abdullah [bin Mas'ud] narrated two Ahadith to us, one of them from himself and the other from the Prophet (s.a.w). 'Abdullah said: 'The believer sees his sins as if he was at the base of a mountain, fearing that it was about to fall upon him. The wicked person sees his sins as if (they are) flies are hitting his nose"" he said: ""Like this"" - motioning with his hand - ""to get them to fly away