We proceeded from Mecca until we reached the Ajfar valley, where we came across a man who was praying. We saw the rays of the Sun, so we felt angry. He was praying whilst we were supplicating against him. He prayed one unit whilst we were supplicating against him; we were saying: He is from the youth of the people of the Medina. When we came to him, it turned out that he was Abu `Abdillah Ja`far b. Muhammad (as). So, we descended and prayed with him. We had missed one unit; so, when we completed the prayer, we stood and went to him, saying: May we be your sacrifice! Is this the time that you pray? So, he said: Once the Sun sets, then the time has begun.