Musannaf Ibn Abi Shaybah 39581 — The Battle of the Trench

It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) and his (peace and blessings be upon him) Companions kept digging the Trench for three days in such a state that they did not even taste food. Then the Companions said: "O Messenger of Allah (peace and blessings be upon him)! We have come to a hard part of the mountain." The Messenger of Allah (peace and blessings be upon him) said: "Sprinkle water on it." So the Companions sprinkled water on that piece. Then the Prophet (peace and blessings be upon him) came and took a pickaxe or a shovel in his hand and said: "Bismillah (In the name of Allah)." Then he (peace and blessings be upon him) struck three blows, and that piece became a heap of sand. Sayyiduna Jabir says: I happened to glance, and I saw the Messenger of Allah (peace and blessings be upon him) with a stone tied to his blessed belly.