It is narrated from Sayyiduna Ibn Amr (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: "The angel who will blow the trumpet is in the second heaven; one of them has his head in the east and his feet in the west, and they are waiting for the command as to when they will be ordered to blow the trumpet so that they may blow it."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 6804
Hadith Gradingحکم دارالسلام:إسناده ضعيف للشك بين إرساله ووصله، ولجهالة أبى مرية فيما لوثبت وصله