Adhere to truthfulness, for truthfulness leads to righteousness, and righteousness leads to Paradise

The Prophet (may Allah's peace and blessings be upon him) enjoined truthfulness and informed that adherence to it leads to constant good deeds. Persistence in doing good deeds leads the doer to Paradise, and he continues to adopt truthfulness in secret and public and deserves to be labeled as most truthful - this is extreme truthfulness.

Then, he (may Allah's peace and blessings be upon him) warned of lying and false speech, for it prompts a person to deviate from uprightness and to engage in evil, corruption, and sins; then, it leads him to Hellfire. He continues to tell more and more lies until he is recorded with Allah among the liars.