What prayer did the Prophet Muhammad (saw) offer upon entering Aisha's house?
 Narrated Abida bin Humaid:                     `Abdul, `Aziz bin Rufa`i said, "I saw `Abdullah bin Az-Zubair performing Tawaf of the Ka`ba after the morning prayer then offering the two rak`at prayer." `Abdul `Aziz added, "I saw `Abdullah bin Az-Zubair offering a two rak`at prayer after the `Asr prayer." He informed me that Aisha told him that the Prophet used to offer those two rak`at whenever he entered her house."