It is narrated from Sayyiduna Zayd bin Thabit (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Shall I not inform you of the people of Paradise?" The Companions said: "Certainly, O Messenger of Allah!" He said: "Every weak person who is regarded as weak, who, if he were to swear an oath by Allah, Allah would fulfil it. Shall I not inform you of the people of the Fire?" He said: "Every harsh-tempered, strutting, arrogant person."
Hadith Referenceالمعجم الكبير للطبراني / باب الزاي / 4912