Messenger of Allah (ﷺ) sent us in an expedition under the command of Abu 'Ubaidah (May Allah be pleased with him) to intercept a caravan of the Quraish. He provided us with a bag of dates, apart from which he found nothing for us. Abu 'Ubaidah (May Allah be pleased with him) gave each of us one date (every day). He (the narrator) was asked: "What did you do with that?" He said: We sucked that just like a baby and then drank water over that, and it was sufficient for us for the day until night. We beat off leaves with the help of our sticks, then drenched them with water and ate them. We then went to the seaside, when there appeared before us something like a big mound. We came near it and we found that it was a beast called Al-Anbar. Abu 'Ubaidah (May Allah be pleased with him) said: "It is dead (so it useless for us)." He then said: "No (but it does not matter), we have been sent by Messenger of Allah (ﷺ) in the way of Allah and you are hard-pressed (on account of the scarcity of food), so you can eat that." We, three hundred in number, stayed there for a month until we fattened up (having plenty to eat of that fish). He (Jabir) said: I saw how we extracted pitcher after pitcher full of fat from the cavity of its eye, and sliced from it compact piece of meat equal to a bull or almost like a bull. Abu 'Ubaidah (May Allah be pleased with him) called thirteen men from us and he made them sit in the cavity of its eye, and he held one of its ribs and raised it erect and then saddled the biggest of the camels we had with us and it passed through it (the arched rib), and we carried large pieces of meat for use in our journey. When we came back to Al-Madinah we went to Messenger of Allah (ﷺ) and told him about that, whereupon he said, "That was a sustenance Allah had brought forth for you. Do you have any piece of meat left with you, for us to eat." Jabir (May Allah be pleased with him) said: We sent to Messenger of Allah (ﷺ) some of that (meat) and he ate it.

[Muslim].