Mukhtasar Bukhari

Narrated Jabir (may Allah be pleased with him): We were digging the trench (during the Battle of the Trench) when suddenly a very hard patch of earth came up. Everyone went to the Prophet (peace and blessings of Allah be upon him) and said, "O Messenger of Allah! A very hard patch of earth has come up in the trench." The Prophet (peace and blessings of Allah be upon him) said, "I will come myself and remove it." Then the Prophet (peace and blessings of Allah be upon him) came, and there were stones tied to his stomach. For three days we had remained hungry and thirsty. The Prophet (peace and blessings of Allah be upon him) struck the earth with a pickaxe, and as soon as he struck it, the earth became soft.