Musnad Ahmad 1076:2

Yazid narrated to us, Sulayman and Ibn Abi ‘Adi informed us, from Sulayman—the meaning is the same—from a man who narrated to them in the gathering of Abu ‘Uthman al-Nahdi. Ibn Abi ‘Adi said: From a sheikh in the gathering of Abu ‘Uthman, from ‘Ubayd, the freed slave of the Messenger of Allah (ﷺ): That two women fasted, and a man said: "O Messenger of Allah, there are two women here who have fasted, and they are nearly dying of thirst." He turned away from him or remained silent. Then he returned, and I think he said: "at midday," and said: "O Prophet of Allah, by Allah, they have died or are nearly dying." He said: "Call them." He said: So they came. He said: A bowl or a large cup was brought. He said to one of them: "Vomit." She vomited pus, blood, and purulent matter, and flesh, until she filled half the bowl. Then he said to the other: "Vomit." She vomited from the pus, blood, purulent matter, and fresh flesh and other things, until she filled the bowl. Then he said: "These two fasted from what Allah made lawful for them, and broke their fast on what Allah made unlawful for them. One of them sat with the other, and they began eating the flesh of the people." *** Sulayman ibn Dawud narrated to us, Shu‘bah narrated to us, from al-Taymi, who said: A man came upon us in the gathering of Abu ‘Uthman al-Nahdi and narrated to us from ‘Ubayd, the freed slave of the Prophet (ﷺ), and he was asked about the prayer of the Prophet (ﷺ), and he mentioned "his prayer between Maghrib and ‘Isha."