The Prophet ﷺ said, "A faithful believer to a faithful believer is like the bricks of a wall, enforcing each other." While (saying that) the Prophet ﷺ clasped his hands, by interlacing his fingers.

عَنِ النَّبِيِّ ﷺ قَالَ إِنَّ الْمُؤْمِنَ لِلْمُؤْمِنِ كَالْبُنْيَانِ يَشُدُّ بَعْضُهُ بَعْضًا وَشَبَّكَ أَصَابِعَهُ

The Messenger of Allah ﷺ said: “You see the believers, in their mercy toward one another, their love, and their compassion, as like a single body: if one limb complains, the rest of the body responds to it with drowsiness and fever.”

قَالَ رَسُولُ اللَّهِ ﷺ: «تَرَى الْمُؤْمِنِينَ فِي تَرَاحُمِهِمْ وَتَوَادِّهِمْ وَتَعَاطُفِهِمْ كَمَثَلِ الْجَسَدِ: إِذَا اشْتَكَى عُضْوًا تَدَاعَى لَهُ سَائِرُ جَسَدِهِ بِالسَّهَرِ وَالْحُمَّى».