Muwatta Malik 183
موطأ مالك#183HasanThese are the words of a Companion, not of the Prophet ﷺ. The chain is graded on its own terms.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، وَرَبِيعَةَ بْنِ أَبِي عَبْدِ الرَّحْمَنِ، عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ، أَنَّ الْفُرَافِصَةَ بْنَ عُمَيْرٍ الْحَنَفِيَّ، قَالَ مَا أَخَذْتُ سُورَةَ يُوسُفَ إِلاَّ مِنْ قِرَاءَةِ عُثْمَانَ بْنِ عَفَّانَ إِيَّاهَا فِي الصُّبْحِ مِنْ كَثْرَةِ مَا كَانَ يُرَدِّدُهَا لَنَا .
Yahya related to me from Malik from Yahya ibn Said and Rabia ibn Abi Abd arRahman from al-Qasim ibn Muhammad that al Furafisa ibn Umayral-Hanafi said, "I only learnt Sura Yusuf (Sura 12) from the recitation of it by Uthman ibn Affan in the subh prayer because of the great number of times he repeated it to us
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:
In-book reference: 3:16