Sayyiduna Ali (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) put a turban on me on the day of Ghadir Khumm and let one end of it hang down behind me. Then he said: "Allah helped me on the day of Badr and Hunayn with angels wearing turbans like this," and he said: "This turban is a barrier between disbelief and faith." He (peace and blessings be upon him) saw a man shooting with a Persian bow, and he (peace and blessings be upon him) said: "Throw it away." Then he saw an Arabic bow and said: "Hold fast to this and ones like it, and to spears, through which Allah will give you dominance in the lands and help you against your enemies."
Ash'ath is Abu al-Rabi' al-Samman, and he is not strong. Isma'il bin Ayyash contradicted him and narrated it from this same Abdullah bin Busr, from Abd al-Rahman bin Adi al-Bahrani, from his brother Abd al-A'la, from the Prophet (peace and blessings be upon him), as munqati' (with a broken chain). And this Abdullah bin Busr is not strong; Abu Dawud al-Sijistani and others said so.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19736