عَنْ لَيْلَى امْرَأَةِ بَشِيرٍ، قَالَتْ: أَرَدْتُ أَنْ أَصُومَ يَوْمَيْنِ مُوَاصَلَةً فَمَنَعَنِي بَشِيرٌ وَقَالَ: إِنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ نَهَى عَنْهُ، وَقَالَ: ((يَفْعَلُ ذَلِكَ النَّصَارَى وَلَكِنْ صُومُوا كَمَا أَمَرَكُمُ اللَّهُ عَزَّ وَجَلَّ وَأَتِمُّوا الصِّيَامَ إِلَى اللَّيْلِ، فَإِذَا كَانَ اللَّيْلُ فَأَفْطِرُوا))
Lady Laila, the wife of Bashir (may Allah be pleased with her), says: I wanted to fast for two consecutive days without breaking the fast, but my husband Bashir stopped me from doing so and said that the Messenger of Allah (peace and blessings be upon him) has forbidden this. He (peace and blessings be upon him) also said: This is what the Christians do. You should fast in the manner that Allah has commanded you, that is, complete the fast until nightfall, and when night comes, then break your fast.