It wasnarrated from Anas bin Malik that the Messenger of Allah (ﷺ)wentout and saw some people praying while sitting down. He said:
"Theprayer of one who sits down is equivalent to half of the prayer ofonewho stands." (JA)
English reference (JA): Vol. 1, Book 5, Hadith 1230 (JA)
Arabic reference (JA): Book 5, Hadith 1288 (JA)