"Have you found what your Lord promised to be true?" he said: "They can hear what I am saying to them now". Mention of that was made to 'Aishah and she said: "Ibn 'Umar is mistaken. Rather the Messenger of Allah said: "Ibn 'Umar is mistaken. Rather the Messenger of Allah said: 'Now they know that what I used to say to them is the truth.' Then she recited: So verily, you (O Muhammad) cannot make the dead to hear., until she recited the verse."
Sunan an-Nasa'i Book 21, Hadith 259