Abdur Rahman bin 'Auf and Az-Zubair complained to the Prophet, i.e. about the lice (that caused itching) so he allowed them to wear silken clothes. I saw them wearing such clothes in a holy battle.
Sahih al-Bukhari, Vol. 4, Book of Jihaad, Hadith 170
Sahih al-Bukhari, Book of Jihaad, Hadith 170