Mukhtasar Bukhari

Narrated Jabir (may Allah be pleased with him): The Messenger of Allah (peace and blessings of Allah be upon him) sent an army towards the seashore and appointed Abu Ubaidah bin Jarrah (may Allah be pleased with him) as the commander, and they were three hundred men. We set out, and when we had gone a little distance, our provisions ran out. Abu Ubaidah (may Allah be pleased with him) ordered that everyone's provisions be collected in one place, so they were gathered. My provision was only one date, and he would give us a little from it each day. Then that too finished, so we would get only one date each day. (The narrator says) I asked, "Would one date fill your stomach?" Jabir (may Allah be pleased with him) said, "When even that finished, then we realized its value." Then we reached the sea and saw a fish like a mountain. The people ate from it for eighteen nights. Then Abu Ubaidah (may Allah be pleased with him) ordered that two of its ribs be set upright, and they were so high that a camel with its saddle was made to pass underneath them, and it passed through easily.

Sayyiduna Jarir (may Allah be pleased with him) says in another narration that the sea, by Allah’s command, cast out an animal (a fish) called ambergris. We ate its meat for half a month and applied its fat to our bodies, so our bodies became as healthy and robust as before. In another narration, he says that Sayyiduna Abu Ubaidah (may Allah be pleased with him) said to us, “Eat it.” When we came to Madinah, we related this to the Noble Prophet (peace and blessings of Allah be upon him). He said: “Eat it, it was sustenance sent by Allah. If you have any of it left, feed us as well.” Someone brought some to the Prophet (peace and blessings of Allah be upon him), and he also ate from it.