Seven things the Prophet (sal Allahu alaihi wa sallam) commanded us with
Al-Bara’ bin ‘Azib (radi Allahu anhu) reported: The Messenger of Allah (sal Allahu alaihi wa sallam) commanded us to do seven things: to visit the sick, to follow the funeral (of a dead believer), to invoke the Mercy of Allah upon one who sneezes (i.e., by saying to him: Yarhamuk-Allah), to support the weak, to help the oppressed, to promote the greeting of ‘As-Salamu ‘Alaikum’, and to help those who swear to do something to keep their oaths.
[Sahih Al-Bukhari and Muslim]
We benefit from the above Hadith that Muslims have obligations towards one another.
The fulfilment of this social responsibility creates among them mutual love, a sense of cohesion and feelings of respect for one another.
And Allah knows best!