Muwatta Malik 835
موطأ مالك#835Sahihحَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ أَبِي النَّضْر��، مَوْلَى عُمَرَ بْنِ عُبَيْدِ اللَّهِ عَنْ سُلَيْمَانَ بْنِ يَسَارٍ، . أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنْ صِيَامِ أَيَّامِ مِنًى .
Yahya related to me from Malik from Abu'n-Nadr, the mawla of Umar ibn Ubaydullah, from Sulayman ibn Yasar that the Messenger of Allah, may Allah bless him and grant him peace, forbade fasting on the days of Mina
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:
Salim al-HilaliSahih Lighairihi
In-book reference: 20:131