It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that Sayyiduna al-Aqra' bin Habis (may Allah be pleased with him) said to the Prophet (peace and blessings be upon him): "O Messenger of Allah! Is Hajj (obligatory) every year, or only once in a lifetime?" He (peace and blessings be upon him) said: "Only once, and whoever does more than that, it is a voluntary deed (tatawwu')." The chain of this hadith is sahih (authentic), and Abu Sinan here is al-Du'ali. The two Shaykhs did not record it because they did not transmit the hadiths of Sufyan bin Husayn, although he is among the trustworthy narrators whose hadith is considered reliable.

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Benefit from this House (the House of Allah) as much as you can (that is, perform tawaf and worship abundantly), for it has been demolished twice, and the third time it will be lifted up (to the heavens)." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The guests of Allah are of three kinds: the one who fights in the way of Allah, the one who performs Hajj, and the one who performs Umrah." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) made this supplication: 'Allahumma ighfir lil-hajji wa li-man istaghfara lahu al-hajj' "O Allah, forgive the pilgrim and also the one for whom the pilgrim seeks forgiveness." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it.

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that concerning the saying of Allah, the Mighty and Majestic: "And Hajj to the House is a duty that people owe to Allah, for whoever is able to find a way to it" [Surah Al Imran: 97] , the Prophet (peace and blessings be upon him) was asked: "O Messenger of Allah! What is meant by the ability (the 'way', sabil)?" He (peace and blessings be upon him) said: "Provisions for the journey (travel expenses) and a mount." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it. Hammad bin Salamah also corroborated Sa'id bin Abi Arubah in narrating it from Qatadah.

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) was asked about the saying of Allah Almighty, "whoever is able to find a way to it" [Surah Al Imran: 97] : what is meant by "sabil" (that is, the means of being able to perform Hajj)? He (peace and blessings be upon him) said: "What is meant by it is provisions for the journey (travel expenses) and a mount." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "No woman should travel the distance of one night's journey except that she has a mahram with her." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it with this particular wording.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "No woman should travel the distance of one barid (a set distance of about twelve miles or more) unless she has a mahram with her." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it.

Qasim bin Muhammad narrates: I was with Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) when a man came to him and said that he intended to travel. Abdullah bin Umar said: "Wait a moment, so that I may bid you farewell just as the Messenger of Allah (peace and blessings be upon him) used to bid us farewell (by making this supplication): 'Astawdi'u Allaha dinaka wa amanataka wa khawatima 'amalik' (I entrust to Allah your religion, your trustworthiness and the conclusion of your deeds)." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it.

It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) and his Companions performed Hajj walking on foot from Madinah to Makkah. He (peace and blessings be upon him) said (to the Companions): "Tie your lower garments firmly around your middles (waists)," and he (peace and blessings be upon him) walked with a gait that was brisk and close to jogging (nasalan). The chain of this hadith is sahih (authentic), but the two Shaykhs did not record it.