Anas bin Malik reported,

A robe of fine silk brocade was given as a gift to the Prophet ﷺ, though he used to forbid the wearing of silk. The people marveled at it, so he said, "By the One in whose hand is the soul of Muhammad, the handkerchiefs of Saad bin Muaz in Paradise are finer than this."

Azami 10208

Sahih

عن أنس قال

أهدي للنبي ﷺ جبة سندس، وكان ينهى عن الحرير، فعجب الناس منها، فقال: والذي نفس محمد بيده، لمناديل سعد بن معاذ في الجنة أحسن من هذا.

الأعظمي 10208صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Virtues of the Companions and reports about them
Chapter
Virtues of individual Companions and their reports
Section
Virtues of Saad bin Muaz Ansari
Numbering
Jami al-Kamil 10208 (2nd edition)
Azami 10208