It is narrated from Hazrat Anas (may Allah be pleased with him) that there was a man who was very heavyset and could not come repeatedly to pray with the Prophet (peace be upon him). He said to the Prophet (peace be upon him) that he did not have the strength to come again and again to pray with him, and requested that if the Prophet (peace be upon him) would come to his house one day and pray at a certain place, then he would pray there from then on. So, he arranged an invitation once and called the Prophet (peace be upon him), and sprinkled water on a corner of a mat. The Prophet (peace be upon him) prayed two rak‘ahs there. A man from the family of Jarud, upon hearing this, asked Hazrat Anas (may Allah be pleased with him) whether the Prophet (peace be upon him) used to pray the Duha prayer. He replied that he had only seen the Prophet (peace be upon him) pray that prayer on that day.