حَدَّثَنِي أَبُو مُعَاوِيَةَ حَدَّثَنَا ابْنُ أَبِي ذِئْبٍ عَنِ الْقَاسِمِ بْنِ عَبَّاسٍ عَنْ عَبْدِ اللَّهِ بْنِ عُمَيْرٍ مَوْلَى ابْنِ عَبَّاسٍ عَنِ ابْنِ عَبَّاسٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لَئِنْ بَقِيتُ إِلَى قَابِلٍ لَأَصُومَنَّ الْيَوْمَ التَّاسِعَ
مسند امام احمد بن حنبل · Hadith 1971
It was narrated from 'Abdullah bin 'Umair, the freed slave of Ibn 'Abbas, that Ibn 'Abbas said: The Messenger of Allah (PBUH) said: "If I live till next year, I will certainly fast the ninth day [of Muharram]."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020