(وَعَنْهُ مِنْ طَرِيقٍ ثَانٍ) أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ كَانَ إِذَا صَلَّى فَرَّجَ حَتَّى يَبْدُوَ بَيَاضُ إِبْطَيْهِ
The wording of the hadith narrated through (the second chain) is as follows: When the Messenger of Allah, peace and blessings be upon him, performed prayer, he would separate his arms from his sides to the extent that the whiteness of his armpits became visible.