Spreading the left foot and raising the right

Sayyiduna Wa'il bin Hujr (may Allah be pleased with him) says that the Prophet (peace and blessings be upon him) sat in prayer in such a way that he laid his left foot flat and kept his right foot upright.

Sayyidah Aishah (may Allah be pleased with her) says that when the Prophet (peace and blessings be upon him) raised his head from prostration, he would not go into the second prostration until he had sat up fully; while sitting he would lay his left foot flat beneath him and keep his right foot upright.

Ibrahim says that when the Prophet (peace and blessings be upon him) sat in prayer, he would lay his left foot flat, so much so that because of this the upper part of his feet had turned black.

Yazid bin Abdullah bin Qusayt says that the Prophet (peace and blessings be upon him) used to lay his left foot flat and keep his right foot upright.

Sayyiduna Ibn Umar (may Allah be pleased with them both) says: The Sunnah of prayer is that the left foot be laid flat and the right foot be kept upright.

Ka'b says: When you sit in prayer, lay your left foot flat, for that is better for your prayer and for your back.

Al-Harith says that Sayyiduna Ali (may Allah be pleased with him) used to keep his right foot upright and lay his left foot flat.

Hisham says that al-Hasan would sometimes lay both his feet flat, and sometimes lay the right foot flat and keep the left foot upright. And when Muhammad sat in prayer, he would keep the right foot upright and lay the left one flat.

Something similar to the saying of Muhammad is reported from Ibrahim.