Ibn 'Umar reported that when the Messenger of Allah (ﷺ) sat for tashahhud he placed his left hand on his left knee. and his right hand on his right knee. and he raised his right finger, which is next to the thumb, making supplication in this way, and he stretched his left hand on his left knee.
Reference: Sahih Muslim 580 a In-book : Book 5, Hadith 147 USC-MSA web (English) : Book 4, Hadith 1203 (deprecated)
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