What have you got there ?" He looked; in his right hand he held the shreds he had cut from his trousers, the sock, and the rags of the pocket.

So he had been asleep with them in his hand.

Afterwards reflecting upon it, he remembered that half waking up in his fever, he had grasped all this tightly in his hand and so fallen asleep again.
"Look at the rags he's collected and sleeps with them, as though he has got hold of a treasure..." And Nastasya went off into her hysterical giggle.
Instantly he thrust them all under his great coat and fixed his eyes intently upon her.

Far as he was from being capable of rational reflection at that moment, he felt that no one would behave like that with a person who was going to be arrested.

"But...