Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) narrates that a man entered the mosque while the Noble Prophet (peace and blessings be upon him) was delivering the sermon. The Prophet (peace be upon him) asked him: "Have you performed the prayer?" He replied, "No." The Prophet (peace be upon him) said: "Stand up and perform the prayer." And in the narration of Ahmad bin Abadah and Ahmad bin Muqaddam, it is: "O so-and-so, have you performed the prayer?" And in the narration of Abi Asim, the Prophet (peace be upon him) asked: "Have you offered the prayer?" He said, "No." So the Prophet (peace be upon him) said: "Offer two rak‘ahs."