Reading early Islamic history from the sources
Almost nothing about the earliest period was written down at the time it happened. The great chronicles were compiled in the third and fourth Islamic centuries, the biographical dictionaries later still, and the hadith collections sit alongside both as a partly independent line of transmission. A reader who forgets this chronology will treat later narration as eyewitness testimony.
Two conventions keep the chronology in view. Dates are given in the Hijri calendar with a Gregorian equivalent marked approximate where the sources disagree, and certainty is recorded explicitly — exact, approximate, disputed or unknown — instead of a date being displayed as though it were settled because it was printed.
The dossiers follow that method: each claim carries a type, the tradition that transmits it, the work and edition, the reference as printed, and a verification state. A record that has not been checked against its printed edition is shown as pending review, and a conclusion that a record does not support is not drawn from it.
Quran
يَٰٓأَيُّهَا ٱلنَّاسُ إِنَّا خَلَقْنَٰكُم مِّن ذَكَرٍۢ وَأُنثَىٰ وَجَعَلْنَٰكُمْ شُعُوبًۭا وَقَبَآئِلَ لِتَعَارَفُوٓا۟ ۚ إِنَّ أَكْرَمَكُمْ عِندَ ٱللَّهِ أَتْقَىٰكُمْ ۚ إِنَّ ٱللَّهَ عَلِيمٌ خَبِيرٌۭ
O mankind, indeed We have created you from male and female and made you peoples and tribes that you may know one another. Indeed, the most noble of you in the sight of Allah is the most righteous of you. Indeed, Allah is Knowing and Acquainted.
كَانَ ٱلنَّاسُ أُمَّةًۭ وَٰحِدَةًۭ فَبَعَثَ ٱللَّهُ ٱلنَّبِيِّۦنَ مُبَشِّرِينَ وَمُنذِرِينَ وَأَنزَلَ مَعَهُمُ ٱلْكِتَٰبَ بِٱلْحَقِّ لِيَحْكُمَ بَيْنَ ٱلنَّاسِ فِيمَا ٱخْتَلَفُوا۟ فِيهِ ۚ وَمَا ٱخْتَلَفَ فِيهِ إِلَّا ٱلَّذِينَ أُوتُوهُ مِنۢ بَعْدِ مَا جَآءَتْهُمُ ٱلْبَيِّنَٰتُ بَغْيًۢا بَيْنَهُمْ ۖ فَهَدَى ٱللَّهُ ٱلَّذِينَ ءَامَنُوا۟ لِمَا ٱخْتَلَفُوا۟ فِيهِ مِنَ ٱلْحَقِّ بِإِذْنِهِۦ ۗ وَٱللَّهُ يَهْدِى مَن يَشَآءُ إِلَىٰ صِرَٰطٍۢ مُّسْتَقِيمٍ
Mankind was [of] one religion [before their deviation]; then Allah sent the prophets as bringers of good tidings and warners and sent down with them the Scripture in truth to judge between the people concerning that in which they differed. And none differed over the Scripture except those who were given it - after the clear proofs came to them - out of jealous animosity among themselves. And Allah guided those who believed to the truth concerning that over which they had differed, by His permission. And Allah guides whom He wills to a straight path.