"When the Messenger of Allah (ﷺ) prostrated, he would hold his arms out to his sides, so that the whiteness of his armpits could be seen from behind. And when he sat he rested on his left thigh."
Reference: Sunan an-Nasa'i 1147 In-book : Book 12, Hadith 119 English translation : Vol. 2, Book 12, Hadith 1148
Help us gift a modern, ad-free Islamic application for the Muslim Ummah. Your donation will be recorded as Sadaqah Jariyah in your book of deeds, In Sha Allah.