Sahih Muslim 1912 b
It has been narrated on the authority of Umm Haram (and she was the aunt of Anas) who said:
The Prophet (ﷺ) came to us one day and had a nap in our house. When he woke up, he was laughing. I said: Messenger of Allah, what made you laugh? He said: I saw a people from my followers sailing on the surface of the sea (looking) like kings (sitting) on their thrones. I said: Pray to Allah that He may include me among them. He said: You will be among them. He had a (second) nap, woke up and was laughing. I asked him (the reason for his laughter). He gave the same reply. I said: Pray to Allah that He may include me among them. He said: You are among the first ones. Anas said: 'Ubada b. Samit married her. He joined a naval expedition and took her along with him. When she returned, a mule was brought for her. While mounting it she fell down, broke her neck (and died).
حَدَّثَنَا خَلَفُ بْنُ هِشَامٍ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ مُحَمَّدِ بْنِ،
 يَحْيَى بْنِ حَبَّانَ عَنْ أَنَسِ بْنِ مَالِكٍ، عَنْ أُمِّ حَرَامٍ، وَهْىَ خَالَةُ أَنَسٍ قَالَتْ أَتَانَا النَّبِيُّ صلى
 الله عليه وسلم يَوْمًا فَقَالَ عِنْدَنَا فَاسْتَيْقَظَ وَهُوَ يَضْحَكُ فَقُلْتُ مَا يُضْحِكُكَ يَا رَسُولَ اللَّهِ
 بِأَبِي أَنْتَ وَأُمِّي قَالَ ‏"‏ أُرِيتُ قَوْمًا مِنْ أُمَّتِي يَرْكَبُونَ ظَهْرَ الْبَحْرِ كَالْمُلُوكِ عَلَى الأَسِرَّةِ
 ‏"‏ ‏.‏ فَقُلْتُ ادْعُ اللَّهَ أَنْ يَجْعَلَنِي مِنْهُمْ قَالَ ‏"‏ فَإِنَّكِ مِنْهُمْ ‏"‏ ‏.‏ قَالَتْ ثُمَّ نَامَ فَاسْتَيْقَظَ أَيْضًا
 وَهُوَ يَضْحَكُ فَسَأَلْتُهُ فَقَالَ مِثْلَ مَقَالَتِهِ فَقُلْتُ ادْعُ اللَّهَ أَنْ يَجْعَلَنِي مِنْهُمْ ‏.‏ قَالَ ‏"‏ أَنْتِ مِنَ
 الأَوَّلِينَ ‏"‏ ‏.‏ قَالَ فَتَزَوَّجَهَا عُبَادَةُ بْنُ الصَّامِتِ بَعْدُ فَغَزَا فِي الْبَحْرِ فَحَمَلَهَا مَعَهُ فَلَمَّا أَنْ
 جَاءَتْ قُرِّبَتْ لَهَا بَغْلَةٌ فَرَكِبَتْهَا فَصَرَعَتْهَا فَانْدَقَّتْ عُنُقُهَا ‏.‏