Sunan Abi Dawud 1288
سنن أبي داود#1288Hasanحَدَّثَنَا أَبُو تَوْبَةَ الرَّبِيعُ بْنُ نَافِعٍ، حَدَّثَنَا الْهَيْثَمُ بْنُ حُمَيْدٍ، عَنْ يَحْيَى بْنِ الْحَارِثِ، عَنِ الْقَاسِمِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي أُمَامَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " صَلاَةٌ فِي أَثَرِ صَلاَةٍ لاَ لَغْوَ بَيْنَهُمَا كِتَابٌ فِي عِلِّيِّينَ " .
Narrated AbuUmamah: The Prophet (ﷺ) said: Prayer followed by a prayer with no idle talk between the two is recorded in Illiyyun
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-AlbaniHasan
Muhammad Muhyi Al-Din Abdul HamidHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 5:39