سنن ابن ماجه 2519

It was narrated from `Amr bin Shu'aib , from his father, from his grandfather that the Messenger of Allah (ﷺ) said:“Any slave who has made a contract to buy his freedom for one hundread Uqiyyah and pays it all except ten Uqiyyah; he is still a slave.” (One Uqiyyah is equal to 40 Dirham)

Rapporté par `Amr bin Shu'aib, de son père, de son grand-père : Le Messager d’Allah (ﷺ) a dit : « Tout esclave qui a conclu un contrat d’affranchissement pour cent Uqiyyah et qui en paie tout sauf dix, il reste esclave. » (Une Uqiyyah équivaut à 40 dirhams)