Chapter: Moderation In Prostration; Placing The Hands On The Ground, Keeping The Elbows Up, Away From The Sides, And Lifting The Belly Up Off The Thighs When Prostrating
Abdullah b. Malik ibn Bujainah reported: When the Prophet ( صلی اللہ علیہ وسلم ) prostrated, lie spread out his arms so that the whiteness of his armpits was visible.
Authentic