Sayyiduna Abdullah (may Allah be pleased with him) said: "O people, hold fast to truthfulness, for it brings one near to righteousness, and righteousness brings one near to Paradise. And keep away from lying, for it brings one near to wickedness, and wickedness brings one near to Hell. It is said of the truthful one: 'He spoke the truth and acted righteously,' and it is said of the liar: 'He lied and acted wickedly.' Beware! The angel has an impulse (upon the heart) and the devil also has an impulse. The angel's impulse is a promise of good, and the devil's impulse is a threat of evil. So whoever finds the angel's impulse, let him praise Allah, and whoever finds the devil's impulse, let him seek refuge from it, for Allah, the Mighty and Majestic, says: 'Satan threatens you with poverty and orders you (to immorality)' [Surah al-Baqarah: 268], to the end of the verse." He also said: "Beware! Allah, the Mighty and Majestic, laughs at two men: one is a man who on a cold night gets up from his bed, his quilt and his blanket, performs ablution (wudu), and then stands for prayer. Allah, the Mighty and Majestic, says to His angels: 'What led this servant of Mine to do what he did?' They say: 'Our Lord, hope for what is with You and fear of what is with You.' Allah says: 'I have given him what he hoped for and granted him safety from what he feared.' The other is a man who was in an army and knew what fleeing would bring him, and also knew what was for him with Allah (in standing firm), so he fought until he was martyred. Allah says to the angels: 'What led this servant of Mine to do what he did?' They say: 'Our Lord, hope for what is with You and fear of what is with You.' Allah says: 'I make you witnesses that I have given him what he hoped for and granted him safety from what he feared.'" - or words similar to these.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8500