Sunan an-Nasa'i 527
سنن النسائي#527Sahihأَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، وَمُحَمَّدُ بْنُ بَشَّارٍ، قَالاَ حَدَّثَنَا مُحَمَّدٌ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ سَعْدِ بْنِ إِبْرَاهِيمَ، عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ حَسَنٍ، قَالَ قَدِمَ الْحَجَّاجُ فَسَأَلْنَا جَابِرَ بْنَ عَبْدِ اللَّهِ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُصَلِّي الظُّهْرَ بِالْهَاجِرَةِ وَالْعَصْرَ وَالشَّمْسُ بَيْضَاءُ نَقِيَّةٌ وَالْمَغْرِبَ إِذَا وَجَبَتِ الشَّمْسُ وَالْعِشَاءَ أَحْيَانًا كَانَ إِذَا رَآهُمْ قَدِ اجْتَمَعُوا عَجَّلَ وَإِذَا رَآهُمْ قَدْ أَبْطَئُوا أَخَّرَ .
It was narrated that Muhammad bin 'Amr bin Hasan said:"Al-Hajjaj arrived, and we asked Jabir bin 'Abdullah, who said: 'The Messenger of Allah (ﷺ) prayed Zuhr at the time of intense heat, [1] and 'Asr when the sun was white and clear, and Maghrib when the sun set, and with 'Isha' it would depend - if he saw that the people had gathered, he would pray early, and if he saw that they had not come yet, he would delay it.'" [1] Meaning, at the earliest time
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: 6:34