Sunan Abi Dawud 993
سنن أبي داود#993Sahihحَدَّثَنَا 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 .
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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih Muquf
Zubair Ali ZaiIsnaad Sahih
In-book reference: 2:604