The hadith of Imam al-Hasan al-Basri (may Allah have mercy on him) has already passed: "The Companions of the Messenger of Allah (peace and blessings be upon him) (may Allah be pleased with them all) used to prostrate in such a state that their hands were inside their clothes."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / Q2674