عَنْ أَبِي الدَّرْدَاءِ رَضِيَ الله عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: “أَلَا أُخْبِرُكُمْ بِأَفْضَلَ مِنْ دَرَجَةِ الصِّيَامِ وَالصَّلَاةِ وَالصَّدَقَةِ؟” قَالُوا: بَلَى يَا رَسُولَ اللَّهِ، قَالَ: “إِصْلَاحُ ذَاتِ الْبَيْنِ وَفَسَادُ ذَاتِ الْبَيْنِ الْحَالِقَةُ”
The Prophet said, “Should I not inform you of something superior in rank to fasting, prayer and charity?”
The companions replied, “Of course, oh Messenger of Allah”.
The Prophet said, “The mending of ties between people is better in rank than fasting, prayer and charity, (as) the degeneration of the ties is the destroyer of the religion (literally, the shaver – not of the head, but of the deen)”.
[Reported by Ahmad, Abu Dawud, Tirmidhi]
The Prophet صلى الله عليه وسلم called breaking ties with fellow Muslims the shaver – الحاقة. It doesn’t shave the head, it literally shaves the religion of a person and leaves them with nothing.
A person who shaves the head has no hair left. The one who breaks ties with a fellow Muslim has no religion left! Think about it.