The obligation of Hajj

Sayyiduna Abu Umamah (may Allah be pleased with him) narrates: the Prophet (peace and blessings be upon him) stood among the people and said: "Indeed, Allah Almighty has made Hajj obligatory upon you." A man from among the Bedouins stood up and said: Every year? The Prophet (peace and blessings be upon him) stopped speaking; he became angry and remained (silent) for a long while. Then he began speaking again and said: "Who is the one who asked?" The Bedouin said: It is I, O Messenger of Allah! The Prophet (peace and blessings be upon him) said: "Woe to you! Would you like me to say yes? By Allah, had I said yes, it would have become obligatory; and had it become obligatory, you would have abandoned it; and had you abandoned it, you would have fallen into disbelief. The people before you were destroyed by the leaders of hardship (a'immat al-haraj). By Allah, if I were to make lawful for you everything on the face of the earth and make unlawful for you something the size of a camel's foot, you would fall into that very thing." (The narrator says:) On that occasion Allah Almighty revealed this verse: "O you who believe! Do not ask about things which, if they were made plain to you, would displease you."
Imam al-Tabarani recorded it in al-Mu'jam al-Kabir. Its chain is hasan (good) and sound.

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: A man from Banu Sa'd bin Bakr came to the Prophet (peace and blessings be upon him), who had been nursed among their tribe. He said: O son of Abd al-Muttalib! The Prophet (peace and blessings be upon him) said: "I am ready to answer you." He said: I am the delegate and messenger of my people. I will ask you some questions, and there may be some sharpness in my tone while asking you; I will speak with you, and there may be some sharpness in my tone while speaking with you, so do not take offence. The Prophet (peace and blessings be upon him) said: "Very well." He said: Tell me, who created the heavens, the earth, Paradise and Hell? The Prophet (peace and blessings be upon him) said: "Allah Almighty." He said: I ask you by that Being: has He sent you with what your letters have brought us and what your messengers have told us, that we should bear witness that there is no deity except Allah, and that we should abandon al-Lat and al-Uzza? The Prophet (peace and blessings be upon him) said: "Yes." He asked: I ask you by that Being: has He commanded you with this? The Prophet (peace and blessings be upon him) said: "Yes." He said: Your letters came to us and your messengers came to us (and told us) that we must offer five prayers every day. I ask you by Allah: has He commanded you with this? The Prophet (peace and blessings be upon him) said: "Yes." He said: Your letters came to us and your messengers came to us (and told us) that we must perform Hajj to the House. I ask you by Allah: has He commanded you with this? The Prophet (peace and blessings be upon him) said: "Yes." He said: These are five things; I will not add anything to them. When the man had left, the Prophet (peace and blessings be upon him) said: "If this man does as he has said, he will enter Paradise."
Imam al-Tabarani recorded it in al-Mu'jam al-Kabir. Various routes of it have already passed in the chapter on prayer, recorded by Imam Ahmad and others. The narrators of some of them are the narrators of the Sahih. This chain contains a narrator, Musa bin Abi Ja'far; I have not found anyone who mentions him.

Sayyiduna Samurah (may Allah be pleased with him) narrates: the Prophet (peace and blessings be upon him) said: "Establish the prayer, give the zakah, perform Hajj and Umrah, and remain upright, and you will be kept upright."
Imam al-Tabarani recorded it in al-Mu'jam al-Saghir and al-Mu'jam al-Awsat. Its chain contains a narrator, Imran al-Qattan, whom Ibn Hibban and others declared thiqah (trustworthy), while Yahya bin Ma'in and others declared him da'if (weak).

Sayyiduna Ya'la bin Umayyah (may Allah be pleased with him) narrates: A man came to the Prophet (peace and blessings be upon him), smeared with khaluq (a particular kind of perfume) and wearing (stitched) garments; he had entered ihram for Umrah. He said: O Messenger of Allah! What do you instruct me regarding my Umrah? Allah Almighty then revealed this verse: "Complete the Hajj and the Umrah for Allah." The Prophet (peace and blessings be upon him) said: "Where is the one who asked about Umrah?" He said: Here I am. The Prophet (peace and blessings be upon him) said: "Take off your (stitched) garments, take a bath, cleanse yourself as much as you can, and whatever you would do in your Hajj, do the same in your Umrah (that is, enter ihram in the same way)."
(Allamah al-Haythami says:) I say:
This narration is reported in the Sahih in abridged form.
Imam al-Tabarani recorded it in al-Mu'jam al-Awsat, and its narrators are the narrators of the Sahih.

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) reports this saying of the Prophet (peace and blessings be upon him): "Hajj is jihad, and Umrah is voluntary."
Imam al-Tabarani recorded it in al-Mu'jam al-Kabir. Its chain contains a narrator named Muhammad bin al-Fadl bin Atiyyah, who is kadhdhab (a liar).

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: You have been commanded to establish four things: establishing the prayer, giving the zakah, and establishing Hajj and Umrah to the House. Hajj is the greater Hajj, and Umrah is the lesser Hajj.
Imam al-Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators are thiqat (trustworthy). (Allamah al-Haythami says:) I say: Hadiths concerning the obligation of Hajj and other matters have already passed in the chapter on faith.