Narrated 'Abdullah bin Malik: Ibn Buhaina, "When the Prophet prayed, he used to separate his arms from his body so widely that the whiteness of his armpits was visible."
Hadith Referenceصحيح البخاري / كتاب الصلاة / 390
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة