It is narrated from Hazrat Abu Saeed (may Allah be pleased with him) that you commit such deeds which, in your eyes, are of less value than a particle, but we used to count them, in the blessed era of the Prophet (peace and blessings be upon him), among the destructive things.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 10995
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد حسن .