Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
nasai-kubra:2666al-Qāsim b. Zakariyyā > ʿUbaydullāh / Ibn Mūsá > Yaʿqūb > Jaʿfar > Saʿīd > Ibn ʿAbbās

"The Messenger of Allah would not break fast on the days of Al-Bid whether he was a resident or traveling." (Using translation from Nasāʾī 2345)  

الكبرى للنسائي:٢٦٦٦أَخْبَرَنَا الْقَاسِمُ بْنُ زَكَرِيَّا قَالَ حَدَّثَنَا عُبَيْدُ اللهِ وَهُوَ ابْنُ مُوسَى قَالَ حَدَّثَنَا يَعْقُوبُ عَنْ جَعْفَرٍ عَنْ سَعِيدٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

«كَانَ رَسُولُ اللهِ ﷺ لَا يُفْطِرُ أَيَّامَ الْبِيضِ فِي حَضَرٍ وَلَا سَفَرٍ»  


See similar narrations below:

Collected by Nasāʾī
nasai:2345al-Qāsim b. Zakariyyā > ʿUbaydullāh > Yaʿqūb > Jaʿfar > Saʿīd > Ibn ʿAbbās

"The Messenger of Allah would not break fast on the days of Al-Bid whether he was a resident or traveling."  

النسائي:٢٣٤٥أَخْبَرَنَا الْقَاسِمُ بْنُ زَكَرِيَّا قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ قَالَ حَدَّثَنَا يَعْقُوبُ عَنْ جَعْفَرٍ عَنْ سَعِيدٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

كَانَ رَسُولُ اللَّهِ ﷺ لاَ يُفْطِرُ أَيَّامَ الْبِيضِ فِي حَضَرٍ وَلاَ سَفَرٍ