Sunan an-Nasa'i 3725
سنن النسائي#3725Sahihأَخْبَرَنَا هَارُونُ بْنُ مُحَمَّدِ بْنِ بَكَّارِ بْنِ بِلاَلٍ، قَالَ حَدَّثَنَا أَبِي قَالَ، حَدَّثَنَا سَعِيدٌ، - هُوَ ابْنُ بَشِيرٍ - عَنْ عَمْرِو بْنِ دِينَارٍ، عَنْ طَاوُسٍ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِنَّ الْعُمْرَى جَائِزَةٌ " .
It was narrated from Ibn 'Abbas that the Prophet said:"Indeed 'Umra is permissible
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:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 34:7