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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bayhaqi:8351 – Abū ʿAlī al-Ḥasan b. Aḥmad b. Ibrāhīm b. Shādhān> Ḥamzah b. Muḥammad b. al-ʿAbbās > ʿAbbās b. Muḥammad > ʿUbaydullāh / Ibn Mūsá > Isrāʾīl > Abū Isḥāq > Abū al-Aḥwaṣ > ʿAbdullāh b. Masʿūd

[Machine] If you wake up intending to fast, then you are in one of two conditions: if you wish, you can observe fasting; and if you wish, you can break your fast.  

البيهقي:٨٣٥١ – أَخْبَرَنَا أَبُو عَلِيٍّ الْحَسَنُ بْنُ أَحْمَدَ بْنِ إِبْرَاهِيمَ بْنِ شَاذَانَ بِبَغْدَادَ أنبأ حَمْزَةُ بْنُ مُحَمَّدِ بْنِ الْعَبَّاسِ ثنا عَبَّاسُ بْنُ مُحَمَّدٍ ثنا عُبَيْدُ اللهِ يَعْنِي ابْنَ مُوسَى أنبأ إِسْرَائِيلُ عَنْ أَبِي إِسْحَاقَ عَنْ أَبِي الْأَحْوَصِ عَنْ عَبْدِ اللهِ بْنِ مَسْعُودٍ قَالَ

إِذَا أَصْبَحْتَ وَأَنْتَ تَنْوِي الصِّيَامَ فَأَنْتَ بِأَحَدِ النَّظَرَيْنِ إِنْ شِئْتَ صُمْتَ وَإِنْ شِئْتَ أَفْطَرْتَ