Sahih Al Bukhari 1.24:
Narrated Ibn `Umar: Allah's Apostle said: "I have been ordered (by Allah) to fight against the people until they testify that none has the right to be worshipped but Allah and that Muhammad is Allah's Apostle, and offer the prayers perfectly and give the obligatory charity, so if they perform a that, then they save their lives an property from me except for Islamic laws and then their reckoning (accounts) will be done by Allah."
Sahih Al Bukhari 1.25:
Narrated Abu Huraira: Allah's Apostle was asked, "What is the best deed?" He replied, "To believe in Allah and His Apostle (Muhammad). The questioner then asked, "What is the next (in goodness)? He replied, "To participate in Jihad (religious fighting) in Allah's Cause." The questioner again asked, "What is the next (in goodness)?" He replied, "To perform Hajj (Pilgrim age to Mecca) Mabrur" (i.e. accepted by Allah, performed with the intention of seeking Allah's pleasure only and not to show off, without committing a sin and in accordance with the traditions of the Prophet).
Sahih Al Bukhari 4.42:
Narrated Ibn `Abbas: Allah's Apostle said, "There is no Hijra (i.e. migration) (from Mecca to Medina) after the Conquest (of Mecca), but Jihad and good intention remain; and if you are called (by the Muslim ruler) for fighting, go forth immediately.
Sahih Al Bukhari 4.44:
Narrated Abu Huraira: A man came to Allah's Apostle and said, "Instruct me as to such a deed as equals Jihad (in reward)." He replied, "I do not find such a deed." Then he added, "Can you, while the Muslim fighter is in the battle−field, enter your mosque to perform prayers without cease and fast and never break your fast?" The man said, "But who can do that?" Abu− Huraira added, "The Mujahid (i.e. Muslim fighter) is rewarded even for the footsteps of his horse while it wanders bout (for grazing) tied in a long rope."
Sahih Al Bukhari 4.45:
Narrated Abu Sa`id Al−Khudri: Somebody asked, "O Allah's Apostle! Who is the best among the people?" Allah's Apostle replied "A believer who strives his utmost in Allah's Cause with his life and property." They asked, "Who is next?" He replied, "A believer who stays in one of the mountain paths worshipping Allah and leaving the people secure from his mischief."
Sahih Al Bukhari 4.46:
Narrated Abu Huraira: I heard Allah's Apostle saying, "The example of a Mujahid in Allah's Cause−− and Allah knows better who really strives in His Cause−−−−is like a person who fasts and prays continuously. Allah guarantees that He will admit the Mujahid in His Cause into Paradise if he is killed, otherwise He will return him to his home safely with rewards and war booty."
Sahih Al Bukhari 4.53:
Narrated Anas bin Malik: The Prophet said, "Nobody who dies and finds good from Allah (in the Hereafter) would wish to come back to this world even if he were given the whole world and whatever is in it, except the martyr who, on seeing the superiority of martyrdom, would like to come back to the world and get killed again (in Allah's Cause). Narrated Anas: The Prophet said, "A single endeavor (of fighting) in Allah's Cause in the afternoon or in the forenoon is better than all the world and whatever is in it. A place in Paradise as small as the bow or lash of one of you is better than all the world and whatever is in it. And if a houri from Paradise appeared to the people of the earth, she would fill the space between Heaven and the Earth with light and pleasant scent and her head cover is better than the world and whatever is in it."
Sahih Al Bukhari 4.65:
Narrated Abu Musa: A man came to the Prophet and asked, "A man fights for war booty; another fights for fame and a third fights for showing off; which of them fights in Allah's Cause?" The Prophet said, "He who fights that Allah's Word (i.e. Islam) should be superior, fights in Allah's Cause."
Sahih Al Bukhari 4.80.1:
Narrated Abu Huraira: Allah's Apostle said, "Allah welcomes two men with a smile; one of whom kills the other and both of them enter Paradise. One fights in Allah's Cause and gets killed. Later on Allah forgives the 'killer who also get martyred (In Allah's Cause).
Sahih Al Bukhari 4.80.1:
Narrated Abu Huraira: I went to Allah's Apostle while he was at Khaibar after it had fallen in the Muslims' hands. I said, "O Allah's Apostle! Give me a share (from the land of Khaibar). One of the sons of Sa`id bin Al−`As said, "O Allah's Apostle! Do not give him a share." I said, "This is the murderer of Ibn Qauqal." The son of Sa`id bin Al−As said, "Strange! A Wabr (i.e. guinea pig) who has come down to us from the mountain of Qaduim (i.e. grazing place of sheep) blames me for killing a Muslim who was given superiority by Allah because of me, and Allah did not disgrace me at his hands (i.e. was not killed as an infidel)." (The sub−narrator said "I do not know whether the Prophet gave him a share or not.")
Sahih Al Bukhari 4.84:
Narrated Al−Bara: When the Divine Inspiration: "Those of the believers who sit (at home), was revealed the Prophet sent for Zaid (bin Thabit) who came with a shoulder−blade and wrote on it. Ibn Um−Maktum complained about his blindness and on that the following revelation came: "Not equal are those believers who sit (at home) except those who are disabled (by injury, or are blind or lame etc.) and those who strive hard and fight in the Way of Allah with their wealth and lives)." ( 4.95)
Sahih Al Bukhari 4.85:
Narrated Sahl bin Sa`d As−Sa`idi: I saw Marwan bin Al−Hakam sitting in the Mosque. So I came forward and sat by his side. He told us that Zaid bin Thabit had told him that Allah's Apostle had dictated to him the Divine Verse: "Not equal are those believers who sit (at home) and those who strive hard and fight in the Cause of Allah with their wealth and lives.' ( 4.95) Zaid said, "Ibn−Maktum came to the Prophet while he was dictating to me that very Verse. On that Ibn Um Maktum said, "O Allah's Apostle! If I had power, I would surely take part in Jihad." He was a blind man. So Allah sent down revelation to His Apostle while his thigh was on mine and it became so heavy for me that I feared that my thigh would be broken. Then that state of the Prophet was over after Allah revealed "...except those who are disabled (by injury or are blind or lame etc.) ( 4.95)
Sahih Al Bukhari 4.352:
Narrated Abu Huraira: Allah's Apostle said, "Allah guarantees him who strives in His Cause and whose motivation for going out is nothing but Jihad in His Cause and belief in His Word, that He will admit him into Paradise (if martyred) or bring him back to his dwelling place, whence he has come out, with what he gains of reward and booty."
Sahih Al Bukhari 4.66:
Narrated Abu `Abs: (who is `Abdur−Rahman bin Jabir) Allah's Apostle said," Anyone whose both feet get covered with dust in Allah's Cause will not be touched by the (Hell) fire