مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 891
Prayer
Prostration and its Excellence - Section 1
وَعَنْ عَبْدِ اللَّهِ بْنِ مَالِكٍ بن بُحَيْنَة قَالَ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا سَجَدَ فَرَّجَ بَيْنَ يَدَيْهِ حَتَّى يَبْدُوَ بَيَاض إبطَيْهِ
‘Abdallah b. Malik Ibn Buhaina* said that when the Prophet (ﷺ) prostrated himself he spread out his arms so that the whiteness under his armpits was visible. * Buhaina was ‘Abdallah’s mother. (Bukhari and Muslim.)
Mishkat al-Masabih, 891مُتَّفَقٌ عَلَيْهِ (الألباني)