Riyad as-Salihin

Riyad as-Salihin 1581

Prohibition of Deceiving others
Arabic hadith text
وعن ابن عمر رضي الله عنهما، أن النبي صلى الله عليه وسلم نهى عن النَجَش، ‏(‏‏(‏متفق عليه‏)‏‏)‏‏.‏
Translation
Ibn 'Umar (May Allah be pleased with them) said

The Messenger of Allah (ﷺ) prohibited the practice of Najsh.[Al-Bukhari and Muslim].