Abu Khirash Hadrad bin Abu Hadrad Al-Aslami (May Allah be pleased with him) said:
I heard the Prophet (ﷺ) saying, "Whosoever forsakes his brother for a year is like one who sheds his blood."[Abu Dawud]. (JA)
App reference (JA): Book 18, Hadith 86 (JA)
Arabic/English book reference (JA): Book 18, Hadith 1596 (JA)