Abu Hurairah reported,

We were with the Messenger of Allah ﷺ when Surah al-Jumuah was revealed, and he recited it. When he reached the verse "And others among them who have not yet joined them" [Jumuah 62:3], a man asked him, "Messenger of Allah, who are these who have not yet joined us?"The Prophet ﷺ did not answer him. Salman Farsi was among us. The Messenger of Allah ﷺ then placed his hand on Salman and said, "By the One in whose hand is my soul, if faith were at the Pleiades, Some men from these people would reach it."

Tirmidhi 3933

Sahih

حدثنا علي بن حجر حدثنا عبد الله بن جعفر حدثني ثور بن زيد الديلي عن أبي الغيث

عن أبي هريرة قال

كنا عند رسول الله ﷺ حين أنزلت سورة الجمعة فتلاها فلما بلغ {وآخرين منهم لما يلحقوا بهم} قال له رجل يا رسول الله من هؤلاء الذين لم يلحقوا بنا فلم يكلمه قال وسلمان الفارسي فينا قال فوضع رسول الله ﷺ يده على سلمان فقال والذي نفسي بيده لو كان الإيمان بالثريا لتناوله رجال من هؤلاء

الترمذي 3933صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami Tirmidhi
Book
Virtues
Chapter
Virtue of the non-Arabs
Numbering
Darussalam 3933
Tirmidhi 3933