“It is one of the greatest sins that a man should curse his parents.” It was asked (by the people), “O Allah’s Apostle! How does a man curse his parents?” The Prophet said, “‘The man abuses the father of another man and the latter abuses the father of the former and abuses his mother.” (Bukhari)

And hold firmly to the rope of Allah all together and do not become divided. And remember the favor of Allah upon you – when you were enemies and He brought your hearts together and you became, by His favor, brothers. And you were on the edge of a pit of the Fire, and He saved you from it. Thus does Allah make clear to you His verses that you may be guided.[3:103].

http://www.youtube.com/watch?v=jJrw0bEX6fo&feature=fvst

The history of the rituals of Hajj and ‘Umrah begins with the declaration of Abraham (sws) , Never did these rituals cease to be offered thereafter. Before the advent of the Prophet Muhammad (sws) also, the people of Arabia would come to offer them in multitudes and after his advent too, this process has continued. No doubt, the Arabs had introduced certain innovati…ons in these rituals; however, it is evident from historical narratives that certain people among them were fully aware of these innovations and would offer Hajj according to the way prescribed by Abraham (sws). It is narrated about the Prophet (sws) that before he was assigned Prophethood, he was spotted in ‘Arafat by Jubayr Ibn Mut‘im. He was surprised on this because the people of Quraysh would not go beyond Muzdalifah while the Prophet (sws) had come as far as ‘Arafat. He says:

أَضْلَلْتُ بَعِيرًا لِي فَذَهَبْتُ أَطْلُبُهُ يَوْمَ عَرَفَةَ فَرَأَيْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَاقِفًا بِعَرَفَةَ فَقُلْتُ هَذَا وَاللَّهِ مِنْ الْحُمْسِ فَمَا شَأْنُهُ هَا هُنَا (بخارى , رقم: ١٦٦٤)
I lost my camel. On the day of ‘Arafah, while trying to locate it I went up to the field of ‘Arafat and found that Muhammad (sws) was standing there. I said to myself: ‘By God! He belongs to the Quraysh; then what he is doing here?’ (Bukhari, No: 1664)

Narrated Abu Mas’ud: The Prophet(peace be upon him) said, “If a man spends on his family (with the intention of having a reward from Allah) sincerely for Allah’s sake then it is a (kind of) alms-giving in reward for him {Bukhari}

The Prophet said, “Allah will prepare for him who goes to the mosque (every) morning and in the afternoon (for the congregational prayer) an honorable place in Paradise with good hospitality for (what he has done) every morning and afternoon goings.”[Bukhari 0631]