(15) باب تَفَاضُلِ أَهْلِ الإِيمَانِ فِي الأَعْمَالِ
Narrated Abu Said Al-Khudri:
Allah's Messenger (ﷺ) said, "While I was sleeping I saw (in a dream) some people wearing shirts of which some were reaching up to the breasts only while others were even shorter than that. Umar bin Al-Khattab wasshown wearing a shirt that he was dragging." The people asked, "How did you interpret it? (What is its interpretation) O Allah's Messenger (ﷺ)?"He (the Prophet (ﷺ) ) replied, "It is the Religion."
Reference: Sahih al-Bukhari 23
In-book reference: Book 2, Hadith 16
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 2, Hadith 23