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.
bayhaqi:8583Abū al-Ḥusayn b. al-Faḍl > ʿAbdullāh b. Jaʿfar > Yaʿqūb b. Sufyān > Abū Bakr al-Ḥumaydī > Sufyān > ʿAmr > Abū Fākhitah Saʿīd b. ʿAlāqah > Ibn ʿAbbās > Yaṣūm al-Mujāwir And al-Mujāwir al-Muʿtakif Faḥukī Lisufyān > Hushaym Yaqūluh > ʿAmr > Abū Fākhitah > Ibn ʿAbbās > Lā Āʿtikāf Illā Biṣawm

[Machine] Sufyan made a mistake, it is as I told you.  

البيهقي:٨٥٨٣وَأَخْبَرَنَا أَبُو الْحُسَيْنِ بْنُ الْفَضْلِ أنبأ عَبْدُ اللهِ بْنُ جَعْفَرٍ ثنا يَعْقُوبُ بْنُ سُفْيَانَ ثنا أَبُو بَكْرٍ الْحُمَيْدِيُّ ثنا سُفْيَانُ ثنا عَمْرٌو سَمِعْتُ أَبَا فَاخِتَةَ سَعِيدَ بْنَ عَلَاقَةَ يَقُولُ سَمِعْتُ ابْنَ عَبَّاسٍ يَقُولُ يَصُومُ الْمُجَاوِرُ وَالْمُجَاوِرُ الْمُعْتَكِفُ فَحُكِيَ لِسُفْيَانَ أَنَّ هُشَيْمًا يَقُولُهُ عَنْ عَمْرٍو عَنْ أَبِي فَاخِتَةَ أَنَّ ابْنَ عَبَّاسٍ قَالَ لَا اعْتِكَافَ إِلَّا بِصَوْمٍ فَقَالَ

سُفْيَانُ أَخْطَأَ هُشَيْمٌ هُوَ كَمَا قُلْتُ لَكَ