In The Name of Allaah, The Most Merciful, The Bestower of Mercy.
Ibn Abbaas [radiyallaahu-anhumaa] said, “Well-being and safety is ten parts; nine parts are found in silence [i.e. speak good or remain silent] and the tenth part is found in seclusion”. [Sifatus Safwa. 4/257]
Maalik Bin Deenaar [rahimahullaah] said, “The righteous people used to advise one another with three affairs: restraint of the tongue, seeking the forgiveness of Allaah and seclusion”. [Hilyatul Awliyaa 2/277]
Al-Khattaabee [rahimahullaah] stated that the intent behind this [i.e. seclusion] neither means that a person abandons the obligatory gatherings [i.e. Salawaat, the Jumu’ah prayer and other gatherings where one is required to appear etc], nor that one neglects the rights of the people [i.e. such as visiting people for the sake of Allaah, helping them, responding to invitation etc] and the good customary practices established amongst the people [Ref 1], nor does it mean that one refrains from replying to their greetings; rather seclusion necessitates abandoning excessive and increased intermingling for which there is no need. [Al-Uzlah. pages 12-13]
Ref 1: A Principle Regarding Customs of The People: Imaam Ash-Shaatibee [rahimahullaah] stated that Customs are many different types- some are sound and others are corrupt. The sound customs are those that neither oppose the Sharee’ah texts nor lead to losing an affair deem to be beneficial by the Sharee’ah, nor lead to an affair which the Sharee’ah deems to be corrupt. As for the corrupt customs, they are those that oppose the evidences in the Sharee’ah or some of the principles of the Sharee’ah, such as some of the customary dealings in usury, and those deeds deemed to be evil by the Sharee’ah which the people engage in during occasions of happiness (or rejoicing etc) [Al-Muwaafaqaat 2/283] NB: Whenever we are unsure whether a certain custom of our nation, tribe or clam is permissible or not, we should seek clarification from the people of knowledge.