Musannaf Ibn Abi Shaybah 2698 — A man keeping his fingers together

Abd al-Rahman bin al-Qasim said: I prayed beside Hafs bin Asim. When I went into prostration, I kept my fingers open and turned my palms away from the qiblah. When I had said the salam, he said: "O my nephew, when you prostrate, keep your fingers together and keep your hands facing the qiblah, for the hands prostrate along with the face."