Sayyiduna Imran bin Husain (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) concluded the ‘Asr prayer after performing three rak‘ahs. Sayyiduna Khirbaq said to him: O Messenger of Allah (peace and blessings be upon him)! Did you forget, or has the prayer been shortened? The Prophet (peace and blessings be upon him) said: Did Khirbaq speak the truth? The people replied: Yes! So the Prophet (peace and blessings be upon him) stood up and performed one rak‘ah, then he performed two prostrations of forgetfulness, and then he concluded with salam.