حَدَّثَنَا سَعِيدُ بْنُ شُرَحْبِيلَ ، حَدَّثَنَا لَيْثُ بْنُ سَعْدٍ ، عَنْ يَحْيَى بْنِ أَيُّوبَ ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرٍ ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ بْنِ عُمَرَ ، عَنْ ابْنِ عُمَرَ ، عَنْ حَفْصَةَ ، عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، قَالَ :" مَنْ لَمْ يُبَيِّتْ الصِّيَامَ قَبْلَ الْفَجْرِ، فَلَا صِيَامَ لَهُ ".
قَالَ عَبْد اللَّهِ : فِي فَرْضِ الْوَاجِبِ أَقُولُ بِهِ

Saeed bin Shurahbil told us, Laith bin Saad told us, on the authority of Yahya bin Ayyub, on the authority of Abdullah bin Abi Bakr, on the authority of Salim bin Abdullah bin Omar, on the authority of Ibn Omar, on the authority of Hafsa, on the authority of the Messenger of God, may God bless him and grant him peace, who said: “Whoever does not spend the night fasting before dawn, there is no fasting for it.”
Abdullah said: Regarding the obligatory obligation, I say so.