Etiquettes of Doing Business

9. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ‘Abd al-Rahman ibn abu Najran from Ali ibn ‘Abd al- Rahim from a man who has said the following: “I once heard abu ‘Abd Allah عليه السلام, saying, ‘If a man says to another man, ‘Come with me, I will offer you a good deal,’ it becomes unlawful for him to make any profit in that deal.’”