Jami` at-Tirmidhi 1228
جامع الترمذي#1228Sahihحَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ الْخَلاَّلُ، حَدَّثَنَا أَبُو الْوَلِيدِ، وَعَفَّانُ، وَسُلَيْمَانُ بْنُ حَرْبٍ، قَالُوا حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنْ بَيْعِ الْعِنَبِ حَتَّى يَسْوَدَّ وَعَنْ بَيْعِ الْحَبِّ حَتَّى يَشْتَدَّ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ لاَ نَعْرِفُهُ مَرْفُوعًا إِلاَّ مِنْ حَدِيثِ حَمَّادِ بْنِ سَلَمَةَ .
Narrated Anas: "The Messenger of Allah (ﷺ) prohibited selling grapes until they appear and selling grains until they become firm." [Abu 'Eisa said:] This Hadith is Hasan Gharib, we do not know of it being Marfu' except from the narration of Hammad bin Salamah
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: 14:28