It is narrated (marfu'an) from Hazrat Abu Hurairah (may Allah be pleased with him) that the dead person even hears the sound of the footsteps of the people when they are returning after burying him.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 9742
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد ضعيف، والد السدۤي مجهول الحال