What was the point of illustration that the Prophet (saw) was trying to make when he pointed out with his hand in the hadith about the Friday prayer's particular time?
 Narrated Abu Huraira:                     Abu-l-Qasim (the Prophet) said, "On Friday there is a particular time. If a Muslim happens to be praying and invoking Allah for something good during that time, Allah will surely fulfill his request." The Prophet pointed out with his hand. We thought that he wanted to illustrate how short that time was.