The qinaa of Rasulullah (saw)

Qinaa is the cloth which Sayyidina Rasoolullah sallallahu alaihe wasallam wore on his auspicious head under the turban. This was to prevent the turban from becoming oily. The Ulama have also mentioned some other benefits. Only one hadith is mentioned in this chapter. 

(119) Hadith Number 1 
Hazrat Anas bin Malik radiyallahu anhu says, “Rasoollullah sallallahu alaihe wasallam often wore a cloth on his auspicious head. This cloth, because of its greasiness, looked as if had been oiled.” 

Commentary
That means that the cloth was oily due to the excessive use of oil. Besides all this, it is a peculiarity of Sayyidina Rasoollullah sallallahu alaihe wasallam that this cloth did not become dirty, nor did any lice live in the clothing of Sayyidina Rasoolullah sallallahu alaihe wasallam, nor could an insect suck his auspicious blood. Allamah Munaawi has related from (Qari) Allamah Raazi, “A fly never sat on the clothing of Sayyidina Rasoolullah sallallahu alaihe wasallam.”