Narrated by Ubada bin As-Samit
Narrated 'Ubada bin As-Samit: Allah's Apostle said, "Whoever does not recite Al-Fatiha in his prayer, his prayer is invalid."
The Hadith addresses Al-Fatiha - The Lord's Prayer in 5 authentic narrations from Sahih Bukhari, categorized under Invocations - Duas. Below are the relevant Hadith presented without interpretation.
Narrated by Ubada bin As-Samit — Sahih Bukhari, Vol. 1, Book 12, Hadith 723Narrated by Ubada bin As-Samit: Narrated 'Ubada bin As-Samit: Allah's Apostle said, "Whoever does not recite Al-Fatiha in his prayer, his prayer is invalid."
Narrated by Abu Hurairah — Sahih Bukhari, Vol. 1, Book 12, Hadith 739Narrated by Abu Hurairah: Narrated Abu Huraira: The Qur'an is recited in every prayer and in those prayers in which Allah's Apostle recited aloud for us, we recite aloud in the same prayers for you; and the prayers in which the Prophet recited quietly, we recite quietly. If you recite "AlFatiha" only it is sufficient but if you recite something else in addition, it is better.
Narrated by Abdullah bin Abu Qatada — Sahih Bukhari, Vol. 1, Book 12, Hadith 743Narrated by Abdullah bin Abu Qatada: Narrated 'Abdullah bin Abi Qatada: My father said, "The Prophet uses to recite Al-Fatiha followed by another Sura in the first two Rakat of the prayer and used to recite only Al-Fatiha in the last two Rakat of the Zuhr prayer. Sometimes a verse or so was audible and he used to prolong the first Rak'a more than the second and used to do the same in the 'Asr and Fajr prayers."
Narrated by Abu Said — Sahih Bukhari, Vol. 3, Book 36, Hadith 476Narrated by Abu Said: Narrated Abu Said: Some of the companions of the Prophet went on a journey till they reached some of the 'Arab tribes (at night). They asked the latter to treat them as their guests but they refused. The chief of that tribe was then bitten by a snake (or stung by a scorpion) and they tried their best to cure him but in vain. Some of them said (to the others), "Nothing has benefited him, will you go to the people who resided here at night, it may be that some of them might possess something (as treatment)," They went to the group of the companions (of the Prophet ) and said, "Our chief has been bitten by a snake (or stung by a scorpion) and we have tried everything but he has not benefitted. Have you got anything (useful)?" One of them replied, "Yes, by Allah! I can recite a Ruqya, but as you have refused to accept us as your guests, I will not recite the Ruqya for you unless you fix for us some wages for it." They agrees to pay them a flock of sheep. One of them then went and recited (Suratul-Fatiha): 'All the praises are for the Lord of the Worlds' and puffed over the chief who became all right as if he was released from a chain, and got up and started walking, showing no signs of sickness. They paid them what they agreed to pay. Some of them (i.e. the companions) then suggested to divide their earnings among themselves, but the one who performed the recitation said, "Do not divide them till we go to the Prophet and narrate the whole story to him, and wait for his order." So, they went to Allah's Apostle and narrated the story. Allah's Apostle asked, "How did you come to know that Surat-ul-Fatiha was recited as Ruqya?" Then he added, "You have done the right thing. Divide (what you have earned) and assign a share for me as well." The Prophet smiled thereupon.
Narrated by Abu Said bin al Mu'alla — Sahih Bukhari, Vol. 6, Book 60, Hadith 1Narrated by Abu Said bin al Mu'alla: Narrated Abu Said bin Al-Mu'alla: While I was praying in the Mosque, Allah's Apostle called me but I did not respond to him. Later I said, "O Allah's Apostle! I was praying." He said, "Didn't Allah say'--"Give your response to Allah (by obeying Him) and to His Apostle when he calls you." (8.24) He then said to me, "I will teach you a Sura which is the greatest Sura in the Qur'an, before you leave the Mosque." Then he got hold of my hand, and when he intended to leave (the Mosque), I said to him, "Didn't you say to me, 'I will teach you a Sura which is the greatest Sura in the Quran?' He said, "Al-Hamdu-Lillah Rabbi-l-Alamin (i.e. Praise be to Allah, the Lord of the worlds) which is Al-Sab'a Al-Mathani (i.e. seven repeatedly recited Verses) and the Grand Qur'an which has been given to me."
Source: The Hadith Says — https://thehadithsays.com/islam/invocations-duas/al-fatiha-the-lord-s-prayer/