Sunan an-Nasa'i 3816
سنن النسائي#3816Sahihأَخْبَرَنَا بِشْرُ بْنُ خَالِدٍ الْعَسْكَرِيُّ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، عَنْ شُعْبَةَ، قَالَ سَمِعْتُ سُلَيْمَانَ، يُحَدِّثُ عَنْ مُسْلِمٍ الْبَطِينِ، عَنِ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ رَكِبَتِ امْرَأَةٌ الْبَحْرَ فَنَذَرَتْ أَنْ تَصُومَ شَهْرًا فَمَاتَتْ قَبْلَ أَنْ تَصُومَ فَأَتَتْ أُخْتُهَا النَّبِيَّ صلى الله عليه وسلم وَذَكَرَتْ ذَلِكَ لَهُ فَأَمَرَهَا أَنْ تَصُومَ عَنْهَا .
It was narrated that Ibn 'Abbas said:"A woman traveled by sea and vowed to fast for a month, but she died before she could fast. Her sister came to the Prophet and told him about that, and he told her to fast on her behalf
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 35:56