(5) باب نَصْرِ الْمَظْلُومِ
Narrated Abu Musa:
The Prophet (ﷺ) said, "A believer to another believer is like a building whose different parts enforce each other." The Prophet (ﷺ) then clasped his hands with the fingers interlaced (while saying that).
Reference: Sahih al-Bukhari 2446
In-book reference: Book 46, Hadith 7
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 43, Hadith 626