Hadith 2:604
Sahih (Al-Albani)
Isma’ll b. Umayyah said:
I asked about a man who intertwines his fingers while he is engaged in prayer. He said that Ibn ‘Umar had said: This is the prayer of those who earn the anger of Allah.
حَدَّثَنَا بِشْرُ بْنُ هِلاَلٍ، حَدَّثَنَا عَبْدُ الْوَارِثِ، عَنْ إِسْمَاعِيلَ بْنِ أُمَيَّةَ، سَأَلْتُ نَافِعًا عَنِ الرَّجُلِ، يُصَلِّي وَهُوَ مُشَبِّكٌ يَدَيْهِ قَالَ قَالَ ابْنُ عُمَرَ تِلْكَ صَلاَةُ الْمَغْضُوبِ عَلَيْهِمْ
Original Reference: Sunan Abi Dawud 993