Aamir bin Abdullah narrates from his father: When the Prophet Muhammad (peace be upon him) would sit after performing two rak'ahs, he would spread his left leg and keep his right foot upright. He would place his thumb on the middle finger and gesture with the index finger. He would place his left palm on his left knee, and he would place his left palm on his knee.
Hadith Referenceصحیح ابن حبان / كتاب الصلاة / 1943
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيحسن - «صفة الصلاة»: م.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده قوي، رجاله رجال الصحيح، وأبو خالد الأحمر – واسمه سليمان بن حيان الأزدي – قد توبع عليه.