Sayyiduna Rifa'ah bin Rafi' (may Allah be pleased with him) said: On the day of Badr the people converged on Umayyah bin Khalaf. I too advanced towards him and saw that a piece of his coat of mail had been cut away (leaving an opening) beneath his armpit, so I struck him there with one thrust of the sword and killed him. And on the day of Badr I was hit by an arrow which put out my eye; the Messenger of Allah (peace and blessings be upon him) applied his saliva to it and then supplicated for me, and after that I felt no pain in it (the eye).
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith is narrated from Sayyiduna Rifa'ah bin Rafi' (may Allah be pleased with him) only with this chain; Ibn al-Mundhir is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 9124
Hadith Takhrij«أخرجه الحاكم فى «المستدرك» برقم: 5057، والبزار فى «مسنده» برقم: 3729، والطبراني فى «الكبير» برقم: 4535»