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.
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
nasai:2341 – al-Ḥārith b. Miskīn > Ibn al-Qāsim > Mālik > Ibn Shihāb

"There is no fast except for one who intends to fast before dawn." (Daif)  

النسائي:٢٣٤١ – قَالَ الْحَارِثُ بْنُ مِسْكِينٍ قِرَاءَةً عَلَيْهِ وَأَنَا أَسْمَعُ عَنِ ابْنِ الْقَاسِمِ قَالَ حَدَّثَنِي مَالِكٌ عَنِ ابْنِ شِهَابٍ

عَنْ عَائِشَةَ وَحَفْصَةَ مِثْلَهُ لاَ يَصُومُ إِلاَّ مَنْ أَجْمَعَ الصِّيَامَ قَبْلَ الْفَجْرِ  

See similar narrations below:

Collected by Nasāʾī, Mālik
nasai:2343 – al-Ḥārith b. Miskīn > Ibn al-Qāsim > Mālik > Nāfiʿ > Ibn ʿUmar

"None should fast except the one who intended to fast before dawn."  

النسائي:٢٣٤٣ – قَالَ الْحَارِثُ بْنُ مِسْكِينٍ قِرَاءَةً عَلَيْهِ وَأَنَا أَسْمَعُ عَنِ ابْنِ الْقَاسِمِ قَالَ حَدَّثَنِي مَالِكٌ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ

أَنَّهُ كَانَ يَقُولُ لاَ يَصُومُ إِلاَّ مَنْ أَجْمَعَ الصِّيَامَ قَبْلَ الْفَجْرِ  

malik:18-5 – Yaḥyá > Mālik > Nāfiʿ > ʿAbdullāh b. ʿUmar

Yahya related to me from Malik from Nafi that Abdullah ibn Umar used to say, "Only some one who makes the intention to fast before dawn (actually) fasts."  

مالك:١٨-٥ – حَدَّثَنِي يَحْيَى عَنْ مَالِكٍ عَنْ نَافِعٍ عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ

أَنَّهُ كَانَ يَقُولُ لاَ يَصُومُ إِلاَّ مَنْ أَجْمَعَ الصِّيَامَ قَبْلَ الْفَجْرِ