Sayyiduna Abu Raja' narrates: The Prophet (peace and blessings be upon him) went out until he entered the orchard of one of the Ansar, who was irrigating it. The Prophet (peace and blessings be upon him) said to him: "If I water this orchard of yours, what will you give me in return?" He said: "I am trying my utmost to water it, but I do not have the strength for it." The Prophet (peace and blessings be upon him) said to him: "Will you give me a hundred dates, which I will choose from your dates?" He said: "Very well." The Prophet (peace and blessings be upon him) took the large bucket and watered the orchard, until the man began to say: "You will flood my orchard!" Then the Prophet (peace and blessings be upon him) took a hundred dates. The narrator says: He (peace and blessings be upon him) and his Companions ate those dates until all of them were full, then the Prophet (peace and blessings be upon him) returned a full hundred dates to him, just as he had taken them from him.
Al-Tabarani recorded it, and its narrators have been declared trustworthy; this narration is recorded within the biographical entry of Abu Imran.