It is narrated from Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, with Allah, the Mighty and Majestic, are the treasures of good and evil. So glad tidings to the one whom Allah has made a key to good and a lock against evil, and woe to the one whom Allah has made a key to evil and a lock against good."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5935