The Prophet ﷺ was a great commander, and he used to divide the army into coherent groups and used to assign a flag or banner for each people or tribe to fight beneath, teaching Muslims the organization of worldly affairs related to war and politics, as he ﷺ taught us our religious matters and worshipful acts, such as prayer, Zakat, Hajj, and the like. In this hadeeth, Tha‘labah ibn AbeeMaalik Al-Quradhee (scholars held different opinions as to whether or not he was a Companion) narrated that when Qays ibn Sa‘d Al-Ansaaree(may Allah be pleased with him), who used to carry the flag of the Prophet ﷺ assigned to the tribe of Khazraj from the Ansaar, intended to perform Hajj, he combed his hair. The flag here refers to the banner of the army’s division. It was said that the banner was the sign of the commander that followed him wherever he went on the battlefield. The Prophet ﷺ used to assign a flag or banner to the chief of each tribe. The banner of the emigrants was assigned to ‘Alee (may Allah be pleased with him) and the banner of the Ansaar was assigned to Sa‘d ibn ‘Ubaadah, and his son Qays(may Allah be pleased with them) held it after him. Whenever Qays(may Allah be pleased with him) wanted to perform Hajj, he (may Allah be pleased with him) cleaned and combed his hair, before assuming Ihraam (i.e., ritual state of consecration), to keep his hair kempt for the longest period of time. The version compiled by Al-Bayhaqee in Al-Sunan Al-Kubraa and Al-Tabaraanee reads: “He (may Allah be pleased with him) combed his hair on one side of his head; a young boy stood and copied him. Qays(may Allah be pleased with him) noticed that his example had been followed; he assumed Ihraam without combing the rest of his hair,” to avoid unbecoming luxury, since unkemptness is preferred for a person in a state of Ihraam. His servant’s act (i.e., copying him) does not count as a deed on his part, yet the two scenarios are possible; he may have commanded his young servant to copy him or chosen to do so out of prudence and mindfulness of Allah, Exalted is He. The hadeeth underlines the virtues of Qays ibn Sa‘d(may Allah be pleased with him). It is also deduced from the hadeeth that it is permissible to comb one’s hair before assuming Ihraam. It is inferred therefrom that it is allowable to use flags and banners in war..