The necklace of Asma' was lost, so the Prophet (ﷺ) sent some men to look for it. The time for the prayer became due and they had not performed ablution and could not find water, so they offered the prayer without ablution. Then Allah revealed (the Verse of Tayammum).
Sahih al-Bukhari Book 65, Hadith 105
← Previous Hadith Allah's Messenger (ﷺ) said to me, "Recite (of the Qur'an) for me," I said, "Shall I recite it to you although it had been revealed to you?" He said, "I like to hear (the Qur'an) from others." So I recited Surat-an- Nisa' till I reached: "How (will it be) then when We bring from each nation a witness, and We bring you (O Muhammad) as a witness against these people?" (4.41) Then he said, "Stop!" And behold, his eyes were overflowing with tears."

Sahih al-Bukhari Book 65, Hadith 104 Next Hadith → The Verse: "Obey Allah and Obey the Apostle and those of you (Muslims) who are in authority." (4.59) was revealed in connection with `Abdullah bin Hudhafa bin Qais bin `Adi' when the Prophet (ﷺ) appointed him as the commander of a Sariyya (army detachment).

Sahih al-Bukhari Book 65, Hadith 106