ENOfficial
It was narrated from Umm Salamah from the Prophet (ﷺ) regarding: “And that they will not disobey you in Ma’ruf (all that is good in Islam);” he said: “(It is about) wailing.”
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا وَكِيعٌ، عَنْ يَزِيدَ بْنِ عَبْدِ اللَّهِ، مَوْلَى الصَّهْبَاءِ عَنْ شَهْرِ بْنِ حَوْشَبٍ، عَنْ أُمِّ سَلَمَةَ، عَنِ النَّبِيِّ ـ صلى الله عليه وسلم ـ {وَلاَ يَعْصِينَكَ فِي مَعْرُوفٍ} قَالَ: " النَّوْحُ " .
sunnah.com