سنن النسائي

It was narrated from Anas bin Malik that Umm Haram bint Milhan said: "The Messenger of Allah (ﷺ) came to us and took a nap in our house, then he woke up smiling. I said: 'O Messenger of Allah, may my father and mother be ransomed for you, what has made you smile?' He said: 'I saw some people of my Ummah riding on the sea like kings on thrones.' I said: 'Pray to Allah to make me one of them.' He said: 'You will be one of them.' Then he slept again, and woke up smiling. I asked him and he said the same thing. I said: 'Pray to Allah to make me one of them.' He said: 'You will be one of the first.' Then 'Ubadah bin As-Samit married her, and he traveled by sea, and she traveled with him, but when she came ashore a mule was brought to her and she mounted it, and it threw her off and broke her neck."