It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) said: "Protect yourselves even from minor sins, because sometimes many minor sins gather together and destroy a person." And the Prophet (peace and blessings of Allah be upon him) gave the example of those people who camped in a forest; when it was time to eat, one man went and brought a stick, another went and brought another stick, until many sticks were gathered, and they lit a fire and cooked whatever they had put in it.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 3818
Hadith Gradingحکم دارالسلام:حديث حسن لغيره، وهذا إسناد ضعيف لجهالة حال عبد ربه.