Jami` at-Tirmidhi 793
جامع الترمذي#793Sahihحَدَّثَنَا وَاصِلُ بْنُ عَبْدِ الأَعْلَى الْكُوفِيُّ، حَدَّثَنَا أَبُو بَكْرِ بْنُ عَيَّاشٍ، عَنْ عَاصِمٍ، عَنْ زِرٍّ، قَالَ قُلْتُ لأُبَىِّ بْنِ كَعْبٍ أَنَّى عَلِمْتَ أَبَا الْمُنْذِرِ أَنَّهَا لَيْلَةُ سَبْعٍ وَعِشْرِينَ قَالَ بَلَى أَخْبَرَنَا رَسُولُ اللَّهِ صلى الله عليه وسلم " أَنَّهَا لَيْلَةٌ صَبِيحَتُهَا تَطْلُعُ الشَّمْسُ لَيْسَ لَهَا شُعَاعٌ " . فَعَدَدْنَا وَحَفِظْنَا وَاللَّهِ لَقَدْ عَلِمَ ابْنُ مَسْعُودٍ أَنَّهَا فِي رَمَضَانَ وَأَنَّهَا لَيْلَةُ سَبْعٍ وَعِشْرِينَ وَلَكِنْ كَرِهَ أَنْ يُخْبِرَكُمْ فَتَتَّكِلُوا . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
Zirr said:"I said to Ubayy bin Ka'b: 'O Abu Al-Mundhir! How do you know that it is the night of the twenty-seventh?' He said: 'Rather, the Messenger of Allah informed us that it is a night (after which) the sun rises without rays, so we counted and we remembered it. By Allah! Ibn Mas'ud learned that it is in Ramadan and that it is the nigh of the twenty-seventh, but he did not want to inform you lest you would depend on it
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: 8:112