Jami` at-Tirmidhi 524
جامع الترمذي#524Sahihحَدَّثَنَا نَصْرُ بْنُ عَلِيٍّ، وَسَعِيدُ بْنُ عَبْدِ الرَّحْمَنِ، وَغَيْرُ، وَاحِدٍ، قَالُوا حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " مَنْ أَدْرَكَ مِنَ الصَّلاَةِ رَكْعَةً فَقَدْ أَدْرَكَ الصَّلاَةَ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَالْعَمَلُ عَلَى هَذَا عِنْدَ أَكْثَرِ أَهْلِ الْعِلْمِ مِنْ أَصْحَابِ النَّبِيِّ صلى الله عليه وسلم وَغَيْرِهِمْ قَالُوا مَنْ أَدْرَكَ رَكْعَةً مِنَ الْجُمُعَةِ صَلَّى إِلَيْهَا أُخْرَى وَمَنْ أَدْرَكَهُمْ جُلُوسًا صَلَّى أَرْبَعًا . وَبِهِ يَقُولُ سُفْيَانُ الثَّوْرِيُّ وَابْنُ الْمُبَارَكِ وَالشَّافِعِيُّ وَأَحْمَدُ وَإِسْحَاقُ .
Abu Hurairah narrated that :the Prophet said: "Whoever catches a Rak'ah of the Salat then he has caught 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: 4:37