عَنِ ابْنِ كَعْبِ بْنِ مَالِكٍ عَنْ أَبِيهِ كَعْبِ بْنِ مَالِكٍ رَضِيَ اللَّهُ عَنْهُ أَنَّهُ حَدَّثَهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ بَعَثَهُ وَأَوْسَ بْنَ الْحَدَثَانِ فِي أَيَّامِ التَّشْرِيقِ فَنَادَيَا: أَنَّهُ لَا يَدْخُلُ الْجَنَّةَ إِلَّا مُؤْمِنٌ وَأَيَّامُ التَّشْرِيقِ أَيَّامُ أَكْلٍ وَشُرْبٍ
It is narrated from Sayyiduna Ka'b bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) sent him and Sayyiduna Aws bin Hadthan (may Allah be pleased with him) during the days of Tashreeq to announce that only a believer will enter Paradise and the days of Tashreeq are days of eating and drinking.