Bulugh al-Maram, Book 5, Hadith 687 (In-Book) ⓘ

Nubaishah Al-Hudhali (RAA) narrated that The Messenger of Allah said: “The days of Tashriq (the three days following 'Idul Ad-ha, i.e. 11th, 12th and 13th of Dhul Hijjah) are days of eating, drinking and remembering (dhikr) of Allah, the Most Great and Glorious." Related by Muslim.

وَعَنْ نُبَيْشَةَ اَلْهُذَلِيِّ ‏- رضى الله عنه ‏- قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ أَيَّامُ اَلتَّشْرِيقِ أَيَّامُ أَكْلٍ وَشُرْبٍ, وَذِكْرٍ لِلَّهِ عَزَّ وَجَلَّ } رَوَاهُ مُسْلِمٌ 1‏.‏ ‏1 ‏- صحيح.‏ رواه مسلم ( 1141 )‏، وليس فيه لفظ: " عز وجل ".‏