Praise be to Allaah. 
       There       are a number of ahaadeeth etc. about the Black Stone which we will quote       for our brother so that he may learn from them. 
                    1.           The Black Stone was sent down       by Allaah to this earth from Paradise.                      It       was narrated that Ibn ‘Abbaas said: The Messenger of Allaah   (peace       and blessings of Allaah be upon him) said: “The Black Stone came down       from Paradise.”                      (Narrated       by al-Tirmidhi, 877; al-Nasaa’i, 2935. 
The hadeeth was classed as saheeh       by al-Tirmidhi).
                                    2.                 The Stone was whiter than milk, but the sins of the sons of Adam       made it black.                                   It       was narrated that Ibn ‘Abbaas said: The Messenger of Allaah   (peace       and blessings of Allaah be upon him) said: “When the Black Stone came       down from Paradise, it was whiter than milk, but the sins of the sons of       Adam made it black.”                                   (Narrated       by al-Tirmidhi, 877; Ahmad, 2792. Classed as saheeh by Ibn Khuzaymah,       4/219. Al-Haafiz ibn Hajar classed it as qawiy       (strong) in Fath al-Baari,       3/462). 
                                          (a)                 Al-Mubaarakfoori said in al-Marqaah:       This means, the sins of the sons of Adam who touched the stone, caused it       to turn black. The hadeeth should be taken at face value, because there is       no reason not to, either narrated in a report or by virtue of common       sense.                     (Tuhfat       al-Ahwadhi, 3/525)                     
(b)          Al-Haafiz ibn Hajar said: Some       heretics tried to criticize this hadeeth by saying: How come the sins of       the mushrikeen turned it black and the worship of the people of Tawheed       did not make it white?                     I       answer by quoting what Ibn Qutaybah said: If Allaah had willed, that would       have happened. But Allaah has caused it to be the case that black usually       changes other colours and its not itself changed, which is the opposite to       what happens with white. 
                    (c)           Al-Muhibb al-Tabari said: The       fact that it is black is a lesson for those who have insight. If sins can       have this effect on an inanimate rock, then the effect they have on the       heart is greater.                     See       Fath al-Baari, 3/463 
                                   3.           The Black Stone will come forth       on the Day of Resurrection and will testify in favour of those who touched       it in truth.                                    It was       narrated that Ibn ‘Abbaas said: The Messenger of Allaah   (peace and       blessings of Allaah be upon him) said concerning the Stone: “By Allaah,       Allaah will bring it forth on the Day of Resurrection, and it will have       two eyes with which it will see and a tongue with which it will speak, and       it will testify in favour of those who touched it in sincerity.”                                    Narrated by       al-Tirmidhi, 961; Ibn Maajah, 2944                                    This hadeeth       was classed as hasan by al-Tirmidhi, and as qawiy by al-Haafiz ibn Hajar       in Fath al-Baari, 3/462                                    
(4)               Touching, kissing or pointing       to the Black Stone – this is the first thing to be done when starting       Tawaaf, whether it is for Hajj or ‘Umrah, or voluntary Tawaaf.                     It       was narrated from Jaabir ibn ‘Abd-Allaah (may Allaah be pleased        with him) that when the Messenger of Allaah   (peace and       blessings of Allaah be upon him) came to Makkaah, he came to the Black       Stone and touched it, then he walked to the right of it and ran three       times and walked three times [around the Ka’bah].                                    (narrated       by Muslim, 1218). 
                    (5)                    The Prophet   (peace and       blessings of Allaah be upon him) kissed the Black Stone, and his ummah       followed his lead in doing so.                                    It was       narrated that ‘Umar (may Allaah be pleased with him) came to the Black       Stone and kissed it, then he said: “I know that you are only a stone       which can neither bring benefit nor cause harm. Were it not that I had       seen the Prophet   (peace and blessings of Allaah be upon him) kiss       you, I would not have kissed you.”                                    (Narrated       by al-Bukhaari, 1520; Muslim, 1720)
                                    (6)                If a person is unable to kiss       the Stone, he should touch it with his hand or something else, then he can       kiss the thing with which he touched it. 
                                          (a)                 It was narrated that Naafi’ said: I saw Ibn ‘Umar touch the       Stone with his hand then he kissed his hand. I said, I have never ceased       to do this since I saw the Messenger of Allaah   (peace and blessings       of Allaah be upon him) do it.                     (Narrated       by Muslim, 1268)                     
(b)                It was narrated that Abu Tufayl (may Allaah be pleased with him)       said: I saw the Messenger of Allaah   (peace and blessings of Allaah be       upon him) performing Tawaaf around the House, touching the corner [where       the Stone is] with a crooked staff which he had with him, then kissing the       staff.                     
(Narrated       by Muslim, 1275).              
       (7)               If a person is unable to do the above, then he can point to       it with his hand and say “Allaahu akbar”.                                    It was       narrated that Ibn ‘Abbaas said: The Messenger of Allaah   (peace and       blessings of Allaah be upon him) performed Tawaaf on his camel, and every       time he came to the corner [where the Stone is] he would point to it and       say “Allaahu akbar.”                     (Narrated       by al-Bukhaari, 4987).
                                    (8)        Touching the Stone is one of the things by means of which Allaah       expiates for sins                                    It was       narrated that Ibn ‘Umar said: I heard the Messenger of Allaah         (peace and blessings of Allaah be upon him) say: “Touching them both       [the Black Stone and al-Rukn al-Yamani] is an expiation for sins.”                                    (Narrated by       al-Tirmidhi, 959. This hadeeth was classed as hasan by al-Tirmidhi and as       saheeh by al-Haakim (1/664). Al-Dhahabi agreed with him).                                    It is not       permissible for a Muslim to annoy other Muslims at the Stone by hitting or       fighting. The Prophet   (peace and blessings of Allaah be upon him)       told us that the Stone will testify in favour of those who touched it in       sincerity, which is not the case when a person touches it by disturbing       the slaves of Allaah.                                    And Allaah knows best.