Sahih al-Bukhari 479
Book 8: Prayers (Salat) · Narrated by Ibn `Umar or Ibn `Amr
Arabic
حَدَّثَنَا حَامِدُ بْنُ عُمَرَ، عَنْ بِشْرٍ، حَدَّثَنَا عَاصِمٌ، حَدَّثَنَا وَاقِدٌ، عَنْ أَبِيهِ، عَنِ ابْنِ عُمَرَ، أَوِ ابْنِ عَمْرٍو شَبَّكَ النَّبِيُّ صلى الله عليه وسلم أَصَابِعَهُ.
English translation
Narrated Ibn `Umar or Ibn `Amr:The Prophet (ﷺ) clasped his hands, by interlacing his fingers
Reference: Sahih al-Bukhari 479, Book of Prayers (Salat). English translation by Dr. Muhammad Muhsin Khan.