Anas bin Mālik on the Seriousness of Sins

Anas bin Mālik (may Allāh be pleased with him) said: “You people do (bad) deeds (commit sins) which seem in your eyes as tiny (minute) than hair while we used to consider those (very deeds) during the life-time of the Prophet (peace and blessings of Allāh be upon him) as destructive sins.”