Musannaf Ibn Abi Shaybah

Hazrat Aisha (may Allah be pleased with her) narrates that when the Prophet (peace and blessings be upon him) performed prostration, he would keep his hands facing the Qiblah.

Hazrat Ibn Umar (may Allah be pleased with them both) used to say that when any of you performs prostration, he should keep his hands facing the Qiblah, because the hands also prostrate along with the face.

Hasan and Muhammad considered it preferable that when performing prostration, the palms should be facing towards the Qiblah.

Hazrat Aisha (may Allah be pleased with her) saw a person whose palms were turned away from the Qiblah during prostration. She said, "Turn them towards the Qiblah."

Hazrat Hafs bin Asim says that the Sunnah is that a person should keep his palms open during prayer, keep the fingers joined together, and keep the direction of the palms and fingers towards the Qiblah.

Hazrat Khalid bin Abi Bakr says that I saw Hazrat Salim and Hazrat Qasim turning the palms of their hands towards the Qiblah.

Hazrat Salim narrates that Hazrat Ibn Umar (may Allah be pleased with them) considered it disliked for the palms to be turned away from the direction of the Qiblah.

It is narrated similarly through another chain.