It is narrated from Yazid bin Ubaid, he says: I saw a scar of a wound on the shin of Sayyiduna Salamah bin Akwa’ (may Allah be pleased with him). I asked: Abu Muslim! What is this scar? He said: On the day of Khaybar I was wounded, this is the mark of that. The day I received this wound, people said: Salamah (may Allah be pleased with him) has received a severe wound. I was brought to the service of the Messenger of Allah (peace and blessings be upon him), he blew three times on the wound with his saliva, after that I have not felt any pain in it until now.