Ata' bin Abi Rabah (may Allah have mercy on him) narrates: I asked Sayyiduna Ibn Umar (may Allah be pleased with them both): "Were you present with the Messenger of Allah (peace and blessings be upon him) at the Pledge of Ridwan?" He said: "Yes." I asked: "What was he (peace and blessings be upon him) wearing at that time?" He said: "A cotton shirt, a cotton-padded cloak (jubbah), a wrap, and he (peace and blessings be upon him) had a sword. And I saw Sayyiduna al-Nu'man bin Muqarrin al-Muzani (may Allah be pleased with him) standing by his (peace and blessings be upon him) blessed head; he had lifted the branches of the tree above his (peace and blessings be upon him) head while the people were pledging allegiance to him (peace and blessings be upon him)."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Mis'ar except Isma'il bin Yahya al-Taymi, and Salih bin Harb is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب العين / 3790
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 13578، والطبراني فى «الصغير» برقم: 535»