It is narrated from Hazrat Imran (may Allah be pleased with him) that once Hazrat Umar (may Allah be pleased with him) said: "I put under oath the person who has heard anything from the Prophet (peace and blessings be upon him) regarding the inheritance of the grandfather, that he should inform us." Upon hearing this, a man stood up and said: "I bear witness that the Prophet (peace and blessings be upon him) gave him one third." Hazrat Umar (may Allah be pleased with him) asked: "Is there anyone else with you?" He replied: "I do not know." Hazrat Umar (may Allah be pleased with him) said: "Then you do not know anything."