It is narrated from Hazrat Umm Salamah (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) used to perform two rak'ahs after the Zuhr prayer. Once, a delegation from Banu Tamim arrived, due to which the two rak'ahs that the Prophet (peace and blessings be upon him) used to perform after Zuhr were missed, and he performed them after Asr.