Ibn Seereen RA. says:
"We were once in the company of Abu Hurayrah Radiyallahu 'Anhu. He was wearing a lungi and a sheet, both of which were made of kataan (a fine type of cloth) and were dyed reddish in colour. He (Abu Hurayrah) cleaned his nose with one of these, and said in surprise: 'Allah! Allah!, Abu Hurayrah is cleaning his nose today with a cloth of kataan. There was a time when I was lying unconscious between the mimbar of Rasulullah Sallallahu'Alayhi Wasallam and the room of 'Aayeshah Radiyallahu 'Anha because of severe hunger. People trampled my neck thinking I had become mad, whereas I was not mad, but severe hunger was the cause of the condition'".
English reference: Book 50, Hadith 349