Sunan an-Nasa'i 658
سنن النسائي#658Da'ifأَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنِ الْحَكَمِ، وَسَلَمَةِ بْنِ كُهَيْلٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، أَنَّهُ صَلَّى الْمَغْرِبَ وَالْعِشَاءَ بِجَمْعٍ بِإِقَامَةٍ وَاحِدَةٍ ثُمَّ حَدَّثَ عَنِ ابْنِ عُمَرَ أَنَّهُ صَنَعَ مِثْلَ ذَلِكَ وَحَدَّثَ ابْنُ عُمَرَ أَنَّ النَّبِيَّ صلى الله عليه وسلم صَنَعَ مِثْلَ ذَلِكَ .
It was narrated from Sa'eed bin Jubair that he prayed Maghrib and 'Isha' in Jam' (Muzdalifah) with one Iqamah, then he narrated that Ibn 'Umar had done that, and Ibn 'Umar narrated that the Prophet (S.A.W) had done that
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: 7:33