أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا بَكْرٌ، عَنْ جَعْفَرِ بْنِ رَبِيعَةَ، عَنِ الأَعْرَجِ، عَنْ عَبْدِ اللَّهِ بْنِ مَالِكِ ابْنِ بُحَيْنَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ إِذَا صَلَّى فَرَّجَ بَيْنَ يَدَيْهِ حَتَّى يَبْدُوَ بَيَاضُ إِبْطَيْهِ ‏.‏

It was narrated from Abdullah bin Malik bin Buhainah that: When the Messenger of Allah (PBUH) prayed he held his arms out so much that the whiteness of his armpits appeared. Translation Not Available

Book Ref: Sunan An Nisai Book 12 Hadith 1106
Web Ref:  Sunan An Nisai Vol 2 Book 12 Hadith 1107

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