´It was narrated from Wa'il bin Hujr that :` He saw the Prophet (ﷺ) sitting during the prayer. He lay his left foot on the ground and placed his forearms on his thighs, and pointed with his forefinger, supplicating with it.
Hadith ReferenceSunan an-Nasa'i / The Book of Forgetfulness (In Prayer) / Hadith: 1265
Hadith Gradingالألبانی:صحيح الإسناد | زبیر علی زئی:صحيح