Jami` at-Tirmidhi 3472
جامع الترمذي#3472Da'ifحَدَّثَنَا الْحُسَيْنُ بْنُ الأَسْوَدِ الْعِجْلِيُّ الْبَغْدَادِيُّ، حَدَّثَنَا يَحْيَى بْنُ آدَمَ، عَنِ الْحَسَنِ بْنِ صَالِحٍ، عَنْ أَبِي بِشْرٍ، عَنِ الزُّهْرِيِّ، قَالَ تَسْبِيحَةٌ فِي رَمَضَانَ أَفْضَلُ مِنْ أَلْفِ تَسْبِيحَةٍ فِي غَيْرِهِ .
Az-Zuhri said:“A Tasbihah in Ramadan is better than a thousand Tasbihah in other that it.”
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:
Ahmad Muhammad ShakirDaif Isnaad Maqtu
Al-AlbaniDaif Isnaad Maqtu
Zubair Ali ZaiIsnaad Hasan
In-book reference: 48:103