Jami` at-Tirmidhi 2619
جامع الترمذي#2619Sahihحَدَّثَنَا هَنَّادٌ، حَدَّثَنَا أَسْبَاطُ بْنُ مُحَمَّدٍ، عَنِ الأَعْمَشِ، بِهَذَا الإِسْنَادِ نَحْوَهُ وَقَالَ " بَيْنَ الْعَبْدِ وَبَيْنَ الشِّرْكِ أَوِ الْكُفْرِ تَرْكُ الصَّلاَةِ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ وَأَبُو سُفْيَانَ اسْمُهُ طَلْحَةُ بْنُ نَافِعٍ .
Narrated Al-A'mash:Similar to the previous chain and said: "Between a slave and Shirk or disbelief is abandoning the Salat
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Our source also lists this ruling under Ahmad Muhammad Shakir, the editor of the printed edition it was taken from. It is al-Albani's ruling printed again, so it is counted once.
In-book reference: 40:14