Waail bin Hajar reported,

He described the manner of the Prophet's ﷺ prayer, and it included the following. Then he sat, spreading out his left leg, placing his left hand on his left thigh, and resting his right elbow on his right thigh. He folded two fingers and formed a ring with another. I saw him doing it like this.Bishr formed a ring with the thumb and the middle finger and pointed with the index finger.

Azami 2157

Hasan

عن وائل بن حجر

أنه ذكر صفة صلاة النبي ﷺ وجاء فيه: ثم جلس فافترش رجله اليسرى، ووضع يده اليسرى على فخذه اليسرى، وحد مرفقه الأيمن على فخذه اليمنى، وقبض اثنتين، وحلق حلقة، ورأيته يقول: هكذا. وحلق بشر الإبهام والوسطى، وأشار بالسبابة.

الأعظمي 2157حسن
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Prayer
Chapter
Tashahhud and salam
Section
Pointing with the index finger in tashahhud
Numbering
Jami al-Kamil 2157 (2nd edition)
Azami 2157