It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "A servant, by virtue of his good character, reaches the lofty ranks of the Hereafter and the noblest stations, even though his worship is weak; and indeed, because of his bad character, he reaches the lowest level of Hell."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 750