Sunan an-Nasa'i 5629
سنن النسائي#5629Sahihأَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنِ ابْنِ شِهَابٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّهُ أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنِ الدُّبَّاءِ وَالْمُزَفَّتِ أَنْ يُنْبَذَ فِيهِمَا .
It was narrated from Anas bin Malik that:The Messenger of Allah [SAW] forbade soaking (fruits) in Ad-Dubba' (gourds) and Al-Muzaffat
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:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 51:91