Silsilah as-Sahihah 2702 — Position of hands during supplication

Sayyiduna Malik bin Yasar Sukuni Aufi رضي الله عنه narrates that the Messenger of Allah صلى الله عليه وسلم said: "When you ask Allah (by raising your hands), then ask with the palms of your hands facing upwards, not with the backs of your hands."