‘Abdullah (rahimahullah), the son of Imaam Ahmed (rahimahullah), narrates the following:
I was seated beside my father when he was about to pass away. He would lose consciousness until we would think that he had passed away, then he would regain consciousness and exclaim by gesturing with his hand, “Not Yet! Not yet!” When He repeated this for the third time, I asked him, “O my father! What is this that you are repeatedly doing at this critical moment?” In reply, he asked, “My son! Do you not know?” When I replied in the negative, he said, “Iblees – may the curse of Allah befall him! – was standing beside me, biting his fingertips and exclaiming, ‘O Ahmed! You have escaped me!’ and so I was replying, ‘Not yet, until I have left this world! (i.e. I have only escaped you after I pass away with Imaan).’”
(Hilyatul Awliyaa 9/194)