'Muslims are brothers. When one Muslim sells something to another, it is his duty to inform the other of any defect in the merchandise.'HADITH OF IBN MAJAH
On the Authority of 'Uqbah ibn 'Amir
The Hadith (الحديث, pl. Ahadith) is a body of laws, legends and stories about Muhammad's way of life, (Arabic, Sunnah which includes his biography or the sira) and the sayings themselves where he elaborated on his choices or offered advice; many parts of the Hadith deal with his companions (Sahaba).