Compiled by Imam Yahya ibn Sharaf al-Nawawi
وعنها رضي الله عنها عن النبي صلى الله عليه وسلم قال: "من مات وعليه صوم، صام عنه وليه" ((متفق عليه)).
The Prophet (ﷺ) said, "If a person dies without observing Saum (fasts), his Wali should make it up on his behalf."[Al-Bukhari and Muslim].