Hadithcore
Sahih al-Bukhari, 3941
sahih

Narrated Abu Huraira:

The Prophet (ﷺ) said, "Had only ten Jews (amongst their chiefs) believe me, all the Jews would definitely have believed me."

حَدَّثَنَا مُسْلِمُ بْنُ إِبْرَاهِيمَ، حَدَّثَنَا قُرَّةُ، عَنْ مُحَمَّدٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏

‏ لَوْ آمَنَ بِي عَشَرَةٌ مِنَ الْيَهُودِ لآمَنَ بِي الْيَهُودُ ‏

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References2 variants
In-Book Reference
Book 63, Hadith 165
USC-MSA web (English) reference
Vol. 5, Book 58, Hadith 277 (deprecated numbering scheme)