Sahih Muslim | Book 32 | Chapter 27

Narrated by 'Abdullah
'Abdullah reported Allah's Messenger (may peace be upon him) as saying: Truth leads one to Paradise and virtue leads one to Paradise and the person tells the truth until he is recorded as truthful, and lie leads to obscenity and obscenity leads to Hell, and the person tells a lie until he is recorded as a liar.

Narrated by 'Abdullah b. Mas'ud
'Abdullah b. Mas'ud reported Allah's Messenger (may peace be upon him) as saying: Telling of truth is a virtue and virtue leads to Paradise and the servant who endeavours to tell the truth is recorded as truthful, and lie is obscenity and obscenity leads to Hell-Fire, and the servant who endeavours to tell a lie is recorded as a liar. Ibn Abu Shaiba reported this from Allah's Apostle (may peace be upon him).

Narrated by 'Abdullah
'Abdullah reported Allah's Messenger (may peace be upon him) as saying: It is obligatory for you to tell the truth, for truth leads to virtue and virtue leads to Paradise, and the man who continues to speak the truth and endeavours to tell the truth is eventually recorded as truthful with Allah, and beware of telling of a lie for telling of a lie leads to obscenity and obscenity leads to Hell-Fire, and the person who keeps telling lies and endeavours to tell a lie is recorded as a liar with Allah.

Narrated by A'mash
This hadith has been reported on the authority of A'mash with the same chain of transmitters and no mention is made in the hadith transmitted on the authority of 'Isa (of these words): "He who endeavours to tell the truth and endeavours to tell a lie," and in the hadith transmitted on the authority of Mushir (the words are): "Until Allah records it".