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:2661Aḥmad b. Ḥarb al-Mawṣly > Sufyān > al-Zuhrī > Ḥamzah b. ʿAbdullāh > Ḥafṣah > Lā Ṣiyām Liman Lam Yujmiʿ al-Ṣīām Qabl al-Fajr

[Machine] Abu Abdul Rahman and the correct opinion according to us is that it is suspended and not valid to elevate it, and Allah knows best. Because Yahya ibn Ayyub is not reliable in that matter, and the narration of Ibn Jurayj from Az-Zuhri is not preserved, and Allah knows best. It was sent by Malik.  

الكبرى للنسائي:٢٦٦١أَخْبَرَنَا أَحْمَدُ بْنُ حَرْبٍ المَوْصليُّ قَالَ حَدَّثَنَا سُفْيَانُ عَنِ الزُّهْرِيِّ عَنْ حَمْزَةَ بْنِ عَبْدِ اللهِ عَنْ حَفْصَةَ قَالَتْ «§لَا صِيَامَ لِمَنْ لَمْ يُجْمِعِ الصِّيامَ قَبْلَ الْفَجْرِ» قَالَ

أَبُو عَبْدِ الرَّحْمَنِ وَالصَّوَابُ عِنْدَنَا مَوْقُوفٌ وَلَمْ يَصِحَّ رَفْعُهُ وَاللهُ أَعْلَمُ؛ لَأَنْ يَحْيَى بْنَ أَيُّوبَ لَيْسَ بِذَلِكَ الْقَوِيِّ وَحَدِيثُ ابْنِ جُرَيْجٍ عَنِ الزُّهْرِيِّ غَيْرُ مَحْفُوظٍ وَاللهُ أَعْلَمُ أَرْسَلَهُ مَالِكٌ