Sunan an-Nasa'i 2969
سنن النسائي#2969Sahihأَخْبَرَنَا مُحَمَّدُ بْنُ سَلَمَةَ، قَالَ أَنْبَأَنَا عَبْدُ الرَّحْمَنِ بْنُ الْقَاسِمِ، قَالَ حَدَّثَنِي مَالِكٌ، عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ، عَنْ أَبِيهِ، عَنْ جَابِرٍ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم حِينَ خَرَجَ مِنَ الْمَسْجِدِ وَهُوَ يُرِيدُ الصَّفَا وَهُوَ يَقُولُ " نَبْدَأُ بِمَا بَدَأَ اللَّهُ بِهِ " .
It was narrated that Jabir said:"When he went tout the Masjid heading for As-Safa, I heard the Messenger of Allah say: We will start with that with which Allah started
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 24:352