Narrated Kab ibn Malik: Abdur Rahman ibn Kab ibn Malik said: When Kab ibn Malik heard the call to prayer on Friday, he prayed for Asad ibn Zurarah. I asked him: What is the matter that when you hear the call to prayer, you pray for Asad ibn Zurarah? He replied: This is because he held the Friday prayer for the first time for us at Hazm an-Nabit of Harrah belonging to Banu Bayadah in Naqi', called Naqi' al-Khadumat. I asked him: How many were you at that time ? He said: Forty.