(8) بَاب بَيَانِ أَنَّ الدُّخُولَ فِي الصَّوْمِ يَحْصُلُ بِطُلُوعِ الْفَجْرِ وَأَنَّ لَهُ الْأَكْلَ وَغَيْرَهُ حَتَّى يَطْلُعَ الْفَجْرُ وَبَيَانِ صِفَةِ الْفَجْرِ الَّذِي تَتَعَلَّقُ بِهِ الْأَحْكَامُ مِنْ الدُّخُولِ فِي الصَّوْمِ وَدُخُولِ وَقْتِ صَلَاةِ الصُّبْحِ وَغَيْرِ ذَلِكَ
Samura b. Jundub addressed and narrated from the Messenger of Allah (ﷺ) having said (these words):
Neither the call of Bilal should mislead you nor this whiteness (of false dawn) till (the true) dawn appears (or he said) till the dawn breaks. (ES)
Reference (ES): Sahih Muslim 1094 d (ES)
In-book reference (ES): Book 13, Hadith 53 (ES)
USC-MSA web (English) reference(deprecated numbering scheme): Book 6, Hadith 2410 (ES)