Hadith 2033
Mishkat al-Masabih
Fasting · Completing what has been neglected - Section 1
Arabic
وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنْ مَاتَ وَعَلَيْهِ صَوْمٌ صَامَ عَنْهُ وليه»
English translation
‘A'isha reported God’s messenger as saying, “If anyone dies when some fast due from him has been unfulfilled, his heir must fast on his behalf.” (Bukhari and Muslim.)