بیع باطل
type: Concept
alternative label: بیع فاسد
broader: بیع
preferred label: invalid sale @en
related: بیع صحیح

بیع صحیح
type: Concept
preferred label: valid sale @en
related: بیع باطل

بیع
type: Concept
narrower: بیع باطل
preferred label: sale @en