(a) It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both), attributing it to the Prophet (peace and blessings be upon him): "Indeed, the hands prostrate just as the face prostrates; so when one of you places his face on the ground for prostration, he should place his hands along with it, and when he raises his face, he should raise his hands as well."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2639