Boasting and Pretending to Have Sinned
It is reported that Al-ʿAwwām b. Ḥawshab – Allāh have mercy on him – said:
Boasting that you did a sin (when you did not) is worse than committing the sin.
Al-Daynūrī, Al-Mujālasah wa Jawāhir Al-ʿIlm, article 3073.