Narrated Yazid bin Abi Ubaid: I saw the trace of a wound in Salama's leg. I said to him, O Abu Muslim! What is this wound? He said, This was inflicted on me on the day of Khaibar and the people said, 'Salama has been wounded.' Then I went to the Prophet and he puffed his saliva in it (i.e. the wound) thrice., and since then I have not had any pain in it till this hour.