While the Prophet (ﷺ) was praying, he saw sputum (on the wall) of the mosque, in the direction of the Qibla, and so he scraped it off with his hand, and the sign of disgust (was apparent from his face) and then said, "Whenever anyone of you is in prayer, he should not spit in front of him (in prayer) because Allah is in front of him."
Sahih al-Bukhari Book 78, Hadith 138
← Previous Hadith A man came to the Prophet (ﷺ) and said "I keep away from the morning prayer only because such and such person prolongs the prayer when he leads us in it. The narrator added: I had never seen Allah's Apostle more furious in giving advice than he was on that day. He said, "O people! There are some among you who make others dislike good deeds) cause the others to have aversion (to congregational prayers). Beware! Whoever among you leads the people in prayer should not prolong it, because among them there are the sick, the old, and the needy." (See Hadith No. 670, Vol 1)

Sahih al-Bukhari Book 78, Hadith 137 Next Hadith → A man asked Allah's Messenger (ﷺ) about "Al-Luqata" (a lost fallen purse or a thing picked up by somebody). The Prophet (ﷺ) said, "You should announce it publicly for one year, and then remember and recognize the tying material of its container, and then you can spend it. If its owner came to you, then you should pay him its equivalent." The man said, "O Allah's Messenger (ﷺ)! What about a lost sheep?" The Prophet said, "Take it because it is for you, for your brother, or for the wolf." The man again said, "O Allah's Messenger (ﷺ)! What about a lost camel?" Allah's Messenger (ﷺ) became very angry and furious and his cheeks became red (or his face became red), and he said, "You have nothing to do with it (the camel) for it has its food and its water container with it till it meets its owner."

Sahih al-Bukhari Book 78, Hadith 139