Sayyidah Udaysah bint Uhban ibn Sayfi (RA) narrated Sayyidina Ali ibn Abu Taub (RA) came to my father and asked him to enlist with him (for a battle). My father said to him, My friend and your cousin took a promise from me that when people dispute with each other, I should make for myself a sword of wood. So, I have taken it up and if you like I will come out with you.’ So, he left him alone.
[Ibn Majah 3960]