(40) باب فَضْلِ الْجِهَادِ فِي الْبَحْرِ .
It was narrated that Anas bin Malik said:
"When the Messenger of Allah (ﷺ) went to Quba' he used to come to Umm Haram bint Milhan and she would feed him. Umm Haram was married to 'Ubadah bint As-Samit. The Messenger of Allah (ﷺ entered upon her and she fed him and checked his head for lice. The Messenger of Allah (ﷺ) fell asleep, then he woke up smiling. She said: 'What is making you smile, O Messenger of Allah?' He said: 'Some people of my Ummah were shown to me, fighting in the cause of Allah and riding across the sea like kings on thrones.' I said: 'O Messenger of Allah, pray to Allah to make me one of them.' So the Messenger of Allah, pray to Allah to make me one of them.' So the Messenger of Allah (ﷺ) prayed for her then he slept again.'" (One of narrators) Al-Harith, said (in his narration): "He slept then he woke up smiling. I said to him: 'What is making you smile, O Messenger of Allah?' He said: 'Some people of my Ummah were shown to me, fighting in the cause of Allah and riding across the sea like kings on thrones,' as he had said the first time. I said: 'O Messenger of Allah, pray to Allah to make me one of them.' He said: 'You will be one of the first.' And she traveled by sea at the time of Mu'awiyah, then she fell from her mount when she came out of the sea and died."
Reference: Sunan an-Nasa'i 3171
In-book reference: Book 25, Hadith 87
English translation: Vol. 1, Book 25, Hadith 3173