Sunan Abi Dawud 4984
سنن أبي داود#4984Sahihحَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ أَبِي لَبِيدٍ، عَنْ أَبِي سَلَمَةَ، قَالَ سَمِعْتُ ابْنَ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ تَغْلِبَنَّكُمُ الأَعْرَابُ عَلَى اسْمِ صَلاَتِكُمْ أَلاَ وَإِنَّهَا الْعِشَاءُ وَلَكِنَّهُمْ يُعْتِمُونَ بِالإِبِلِ " .
Ibn ‘Umar reported the prophet (May peace be upon him) as saying:The desert Arabs may not dominate you in respect of the name of your prayer. Beware! It is al-`Isha, but they milk their camels when it is fairly dark
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: 43:212