Determining the correct total issue size when shares are divided among three groups (Ahyaaz) and the counts are identical (Mutamaathilah)?
Chapter on the Roots of Inheritance Shares that Increase (Awl)
Al-Mughni
Book of Inheritance Shares (Farā'id)
Primary text
If the shares are divided among three groups and their respective counts are identical (e.g., three grandmothers, three daughters, and three paternal uncles), one of the identical counts is multiplied by the original base of the shares to establish the corrected total issue size. After correction, each collective group receives an equal portion relative to what their original group received.