(182) باب كَيْفَ الْجُلُوسُ فِي التَّشَهُّدِ
It was reported from Ibrahim that he said:
"When the Prophet (ﷺ) would sit in the prayer, he would place his left foot horizontally - so much so that the upper-part of his foot became black." (RU)
Reference (RU): Sunan Abi Dawud 962 (RU)
In-book reference (RU): Book 2, Hadith 573 (RU)
English translation (RU): Book 2, Hadith 957 (RU)