The Prophet (ﷺ) as saying: If anyone dies when some fast is due from him (i.e. which he could not keep) his heir must fast on his behalf.
Abu Dawud said: This applies to the fast which a man vows ; and this is the opinion of Ahmad b. Hanbal.
| Grade: | Sahih (Al-Albani) | صحيح (الألباني) | حكم : |
| Reference | : Sunan Abi Dawud 2400 |
| In-book reference | : Book 14, Hadith 88 |
| English translation | : Book 13, Hadith 2394 |