Amir bin Abdullah bin Zubayr reported,

When the Messenger of Allah ﷺ sat during the prayer, he would place his left foot between his thigh and shin, lay his right foot flat, rest his left hand on his left knee, place his right hand on his right thigh, and point with his finger.

Muslim 1307

Sahih

حدثنا محمد بن معمر بن ربعي القيسي حدثنا أبو هشام المخزومي عن عبد الواحد وهو ابن زياد حدثنا عثمان بن حكيم حدثني

عامر بن عبد الله بن الزبير عن أبيه قال

كان رسول الله ﷺ إذا قعد في الصلاة جعل قدمه اليسرى بين فخذه وساقه وفرش قدمه اليمنى ووضع يده اليسرى على ركبته اليسرى ووضع يده اليمنى على فخذه اليمنى وأشار بإصبعه

مسلم 1307صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Mosques and places of prayer
Chapter
Description of sitting in prayer and how to place the hands on the thighs
Numbering
Darussalam 1307
Muslim 1307