It is narrated from Abu Wahb that Mak'hool (may Allah have mercy on him) said: The matter of the executor (wasiyy) is permissible in everything except a house, shop, or land; if he sells anything, it will not be revoked. This is also the opinion of Yahya bin Hamzah.
Hadith Referenceسنن دارمي / من كتاب الوصايا / 3236