Musnad Ahmad 1271:1

'Abd al-Samad narrated to us, he said: My father narrated to me, he said: Yahya ibn Sa'id narrated to us, he said: Muhammad ibn Yahya ibn Habban narrated to me, he said: Anas ibn Malik narrated to me, from Umm Haram bint Milhan—and she was his maternal aunt—that the Messenger of Allah (ﷺ) slept—or he said: in her house—then he woke up while he was laughing. I said: "O Messenger of Allah, what makes you laugh?" He said: "People of my nation were presented to me, riding the back of this green sea like kings upon thrones." She said: So I said: "O Messenger of Allah, supplicate to Allah that He makes me one of them." He said: "You are among them." Then he slept, then he woke up while he was laughing. I said: "O Messenger of Allah, what makes you laugh?" He said: "People of my nation were presented to me, riding the back of this green sea like kings upon thrones." She said: So I said: "O Messenger of Allah, supplicate to Allah that He makes me one of them." He said: "You are among the first ones." He said: Then 'Ubadah ibn al-Samit married her and took her out with him. When he crossed the sea with her, she mounted a beast, and it threw her, so it killed her.