faqih-3974Vol. 3, p. 271
لِي يَا هِشَامُ إِنَّ الْبَيْعَ فِي الظِّلَالِ غِشٌّ وَ الْغِشُّ لَا يَحِلُ[4].
Hadith. - Hisham ibn Al-Hakam narrated: "I used to sell Sabiri (a type of cloth) in the shade, and Abu Al-Hasan the First (as) passed by me while riding. Imam (as) said to me: 'O Hisham, selling in the shade is deceit, and deceit is not permissible.'"