Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: After Ramadan, the Prophet (peace and blessings be upon him) did not give the fast of any day preference over another day, except that Ashura was different. (Allamah al-Haythami says:) I say: A hadith other than this one is reported in the Sahih from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both).
Al-Tabarani recorded it in al-Mu'jam al-Awsat. Its chain contains a narrator, Muhammad bin Abd al-Rahman bin Bakr al-Allaf; I have not found anyone who gives his biography. The rest of its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصيام / 5122
Hadith Gradingمحدثین:إسناده ضعیف
Hadith Takhrij«أخرجه المعجم الكبير للطبراني برقم: 11255، وأخرجه المعجم الأوسط للطبراني برقم: 2741»