Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:8215Abū Zakariyyā b. Abū Isḥāq al-Muzakkī > Abū ʿAbdullāh Muḥammad b. Yaʿqūb > Muḥammad b. ʿAbd al-Wahhāb > Jaʿfar b. ʿAwn > Yaḥyá b. Saʿīd > al-Qāsim And Nāfiʿ

[Machine] About a man who dies while having a missed Ramadan fast or a vow. He says, "No one should fast on behalf of another, but rather give charity on his behalf from his wealth for each missed day to a poor person."  

البيهقي:٨٢١٥أَخْبَرَنَا أَبُو زَكَرِيَّا بْنُ أَبِي إِسْحَاقَ الْمُزَكِّي أنبأ أَبُو عَبْدِ اللهِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا مُحَمَّدُ بْنُ عَبْدِ الْوَهَّابِ أنبأ جَعْفَرُ بْنُ عَوْنٍ أنبأ يَحْيَى بْنُ سَعِيدٍ عَنِ الْقَاسِمِ وَنَافِعٍ أَنَّ ابْنَ عُمَرَ كَانَ إِذَا سُئِلَ

عَنِ الرَّجُلِ يَمُوتُ وَعَلَيْهِ صَوْمٌ مِنْ رَمَضَانَ أَوْ نَذْرٌ يَقُولُ لَا يَصُومُ أَحَدٌ عَنْ أَحَدٍ وَلَكِنْ تَصَدَّقُوا عَنْهُ مِنْ مَالِهِ لِلصَّوْمِ لِكُلِّ يَوْمٍ مِسْكِينًا