Sunan an-Nasa'i 1852
سنن النسائي#1852Sahihأَخْبَرَنَا إِسْحَاقُ، قَالَ أَنْبَأَنَا عَبْدُ الرَّزَّاقِ، قَالَ حَدَّثَنَا مَعْمَرٌ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَخَذَ عَلَى النِّسَاءِ حِينَ بَايَعَهُنَّ أَنْ لاَ يَنُحْنَ فَقُلْنَ يَا رَسُولَ اللَّهِ إِنَّ نِسَاءً أَسْعَدْنَنَا فِي الْجَاهِلِيَّةِ أَفَنُسْعِدُهُنَّ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ إِسْعَادَ فِي الإِسْلاَمِ " .
It was narrated from Anas that:when the Messenger of Allah accepted the women's oath of allegiance, he accepted their pledge that they would not wail (over the death). They said: "O Messenger of Allah, there are women who helped us to mourn during the Jahiliyyah should we help them to mourn?" The Messenger of Allah said: "There is no helping to mourn in Islam
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: 21:35