What was Qais bin Sa'd Al-Ansari's intention when he combed his hair according to the hadith narrated by Tha'laba bin Abi Malik Al-Qurazi about the Prophet Muhammad (saw)?
 Narrated Tha`laba bin Abi Malik Al-Qurazi:                     When Qais bin Sa`d Al-Ansari, who used to carry the flag of the Prophet, intended to perform Hajj, he combed his hair.