سنن نسائي
Sunan an-Nasa'i
كتاب الصيام
The Book of Fasting
بَابُ : ذِكْرِ الاِخْتِلاَفِ عَلَى يَحْيَى بْنِ أَبِي كَثِيرٍ وَمُحَمَّدِ بْنِ عَمْرٍو عَلَى أَبِي سَلَمَةَ فِيهِ
Chapter: Mentioning the Difference Reported from Yahya bin Abi Kathir and Muhammad Bin 'Amr from Abu Salamah About that
2 hadith
Hadith 2175
´Abu Hurairah narrated that the Messengre of Allah said:` "None should fast one or two days ahead of the month except, someone who had a prior habit for fasting, in which case let him fast." '
Hadith 2176
´It was narrated that Ibn 'Abbas said:` "The messenger of Allah said: 'Do not fast one or two days ahead of the month, unless that happens to be a day that one of you habitually fasts."' Abu 'Abdur-Rahman (An-Nasai) said: This is a mistake. '