Anas ibn Malik reported: The Messenger of Allah, peace and blessings be upon him, said,

I wish I could meet my brothers.”

The Prophet’s companions said, “Are we not your brothers?”

The Prophet said, “You are my companions, but my brothers are those who have faith in me although they never saw me.”

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Source: Musnad Aḥmad 12169

Grade: Hasan (fair) according to Al-Albani

I copied this Hadith from this source. The readers are advised to read from the original source and I ask Allah to forgive me for any shortcomings.

عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَدِدْتُ أَنِّي لَقِيتُ إِخْوَانِي قَالَ فَقَالَ أَصْحَابُ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَوَلَيْسَ نَحْنُ إِخْوَانَكَ قَالَ أَنْتُمْ أَصْحَابِي وَلَكِنْ إِخْوَانِي الَّذِينَ آمَنُوا بِي وَلَمْ يَرَوْنِي

12169 مسند أحمد باقي مسند المكثرين

2888 المحدث الألباني خلاصة حكم المحدث رجاله ثقات في السلسلة الصحيحة