حَدَّثَنَا يَحْيَى عَنِ ابْنِ جُرَيْجٍ عَنْ عَطَاءٍ عَنِ ابْنِ عَبَّاسٍ دَعَا أَخَاهُ عُبَيْدَ اللَّهِ يَوْمَ عَرَفَةَ إِلَى طَعَامٍ قَالَ إِنِّي صَائِمٌ قَالَ إِنَّكُمْ أَئِمَّةٌ يُقْتَدَى بِكُمْ قَدْ رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ دَعَا بِحِلَابٍ فِي هَذَا الْيَوْمِ فَشَرِبَ وَقَالَ يَحْيَى مَرَّةً أَهْلُ بَيْتٍ يُقْتَدَى بِكُمْ
مسند امام احمد بن حنبل · Hadith 3239
It was narrated from Ibn 'Abbas (RA) that he invited his brother 'Ubaidullah to eat on the day of Arafat, and he said, I am fasting. He said: You are leaders whose example is followed. i saw the Messenger of Allah (PBUH) call for fresh milk on this day and he drank. On one occasion Yahya [one of the narrators] said:... Members of a household whose example is followed.
Sanad
حَدَّثَنَا يَحْيَى عَنِ ابْنِ جُرَيْجٍ عَنْ عَطَاءٍ عَنِ ابْنِ عَبَّاسٍ