I saw the Messenger of Allah ﷺ in prayer with his right hand placed on his right thigh, pointing with his finger.
حدثنا وكيع حدثنا عصام بن قدامة
رأيت رسول الله ﷺ واضعا يده اليمنى على فخذه اليمنى في الصلاة يشير بأصبعه
Its chain is hasan. It has already appeared at 12347.