Muwatta MalikChapter 18Hadith 634
Full Sharh — Muwatta Malik 634
Mauquf Sahih
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّهُ كَانَ يَقُولُ لاَ يَصُومُ إِلاَّ مَنْ أَجْمَعَ الصِّيَامَ قَبْلَ الْفَجْرِ .
English Translation
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
Source
Muwatta Malik(موطأ مالك)
Fasting
Hadith Number
634
Grade
Mauquf Sahih