Obligatory Islamically
وَ حِجُ الْبَيْتِ وَاجِبٌ لِمَنْ اسْتَطَاعَ إِلَيْهِ سَبِيلًا وَ هُوَ الزَّادُ وَ الرَّاحِلَةُ مَعَ صِحَّةِ الْبَدَنِ وَ أَنْ يَكُونَ لِلْإِنْسَانِ مَا يُخَلِّفُهُ عَلَى عِيَالِهِ وَ مَا يَرْجِعُ إِلَيْهِ بَعْدَ حَجِّهِ وَ لَا يَجُوزُ الْحَجُّ إِلَّا تَمَتُّعاً وَ لَا يَجُوزُ الْإِقْرَانُ وَ الْإِفْرَادُ إِلَّا لِمَنْ كَانَ أَهْلُهُ حَاضِرِي الْمَسْجِدِ الْحَرَامِ وَ لَا يَجُوزُ الْإِحْرَامُ قَبْلَ بُلُوغِ الْمِيقَاتِ وَ لَا يَجُوزُ تَأْخِيرُهُ عَنِ الْمِيقَاتِ إِلَّا لِمَرَضٍ أَوْ تَقِيَّةٍ وَ قَدْ قَالَ اللَّهُ عَزَّ وَ جَلَ وَ أَتِمُّوا الْحَجَّ وَ الْعُمْرَةَ لِلَّهِ وَ تَمَامُهَا اجْتِنَابُ الرَّفَثِ وَ الْفُسُوقِ وَ الْجِدَالِ فِي الْحَجِّ
(In a lengthy Hadith from Imam Al-Sadiq-asws): And Hajj of the House is Obligatory for the one who has the capacity for a way to it, and it is the provision, and the departing with health of the body, and that there should happen to be for the human being what he can leave behind upon his dependants and what he can return to after his Hajj, nor is the Hajj allowed except to a Tamatto, nor is the pairing and the separating allowed for the one whose family was present in the Sacred Masjid, and the Ihram is not allowed before reaching the juncture, nor it is allowed to delay it from the juncture except for a sick one or out of Taqiyya (dissimulation), and Allah-azwj Mighty and Majestic has Said: And complete the Hajj and the Umrah for Allah [2:196], and its completion is the shunning of the copulation (Rafs), and the mischief, and the quarrelling during the Hajj (an extract).[1]
[1] بحار الأنوار (ط – بيروت)، ج10، ص: 225, H. 1