"مَنْ لَمْ يُبَيِّتِ الصِّيَامَ قَبْلَ طُلُوعِ الْفَجْرِ، فَلَا صِيَامَ لَهُ".
See similar narrations below:
Collected by Nasāʾī, Tirmidhī, Ṭabarānī, Nasāʾī's Kubrá, Bayhaqī, Suyūṭī"Whoever does not have the intention of fasting before dawn, then there is no fast for him."(Daif)
عَنِ النَّبِيِّ ﷺ قَالَ مَنْ لَمْ يُبَيِّتِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلاَ صِيَامَ لَهُ
"Whoever does not have the intention of fasting before dawn, then there is no fast for him." (Daif)
عَنِ النَّبِيِّ ﷺ قَالَ مَنْ لَمْ يُبَيِّتِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلاَ صِيَامَ لَهُ
"Whoever does not intend to fast before dawn comes, should not fast." (Daif)
عَنِ النَّبِيِّ ﷺ قَالَ مَنْ لَمْ يُجْمِعِ الصِّيَامَ قَبْلَ طُلُوعِ الْفَجْرِ فَلاَ يَصُومُ
the Prophet said: "Whoever did not decide to fast before Fajr then there is no fast for him."
عَنِ النَّبِيِّ ﷺ قَالَ مَنْ لَمْ يُجْمِعِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلاَ صِيَامَ لَهُ
the Prophet said: "Whoever did not decide to fast before Fajr then there is no fast for him." (Using translation from Tirmidhī 730)
عَنِ النَّبِيِّ ﷺ «مَنْ لَمْ يُجْمِعِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلَا صِيَامَ لَهُ»
the Prophet said: "Whoever did not decide to fast before Fajr then there is no fast for him." (Using translation from Tirmidhī 730)
عَنِ النَّبِيِّ ﷺ قَالَ «مَنْ لَمْ يُجْمِعِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلَا صِيَامَ لَهُ»
"Whoever does not have the intention of fasting before dawn, then there is no fast for him."(Daif) (Using translation from Nasāʾī 2331)
عَنْ رَسُولِ اللهِ ﷺ قَالَ «مَنْ لَمْ يُبَيِّتِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلَا صِيَامَ لَهُ»
"Whoever does not have the intention of fasting before dawn, then there is no fast for him."(Daif) (Using translation from Nasāʾī 2331)
عَنِ النَّبِيِّ ﷺ قَالَ «مَنْ لَمْ يُبَيِّتِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلَا صِيَامَ لَهُ»
"Whoever does not intend to fast before dawn comes, should not fast." (Daif) (Using translation from Nasāʾī 2333)
عَنِ النَّبِيِّ ﷺ قَالَ «مَنْ لَمْ يُجْمِعِ الصِّيَامَ قَبْلَ طُلُوعِ الْفَجْرِ فَلَا يَصُمْ»
"Whoever does not have the intention of fasting before dawn, then there is no fast for him."(Daif) (Using translation from Nasāʾī 2331)
عَنْ رَسُولِ اللهِ ﷺ قَالَ مَنْ لَمْ يُبَيِّتِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلَا صِيَامَ لَهُ
"مَنْ لَمْ يَجْمَعِ الصِّيَامَ قَبْلَ الْفَجْرِ فَلا صِيَامَ لَهُ".
"مَنْ لَمْ يُبَيِّتِ الصِّيَامَ مِنَ اللَّيلِ، فَلَا صِيَام لَهُ".
"مَنْ لَمْ يُبَيِّتِ الصِّيَامَ مِنَ اللَّيلِ فَلَا صِيَامَ لَهُ".