صحيح البخاري
Sahih Bukhari
كتاب مناقب الأنصار
The Merits of Al-Ansar
بَابُ التَّارِيخِ مِنْ أَيْنَ أَرَّخُوا التَّارِيخَ:
(48) Chapter. At-Tarikh (Date-definition of time). When did the Muslim calendar start?
Hadith 3934
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ ، حَدَّثَنَا عَبْدُ الْعَزِيزِ ، عَنْ أَبِيهِ ، عَنْ سَهْلِ بْنِ سَعْدٍ ، قَالَ : " مَا عَدُّوا مِنْ مَبْعَثِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَلَا مِنْ وَفَاتِهِ مَا عَدُّوا إِلَّا مِنْ مَقْدَمِهِ الْمَدِينَةَ " .
Narrated Sahl bin Sa`d: The Prophet's companions did not take as a starting date for the Muslim calendar, the day, the Prophet had been sent as an Apostle or the day of his death, but the day of his arrival at Medina.
