A man came to Messenger of Allah ﷺ and asked about Al-Luqata (a fallen thing). The Prophet ﷺ said, "Recognize its container and its tying material and then make a public announcement about it for one year and if its owner shows up, give it to him; otherwise use it as you like." The man said, "What about a lost sheep?" The Prophet ﷺ said, "It is for you, your brother or the wolf." The man said "What about a lost camel?" The Prophet ﷺ said, "Why should you take it as it has got its water-container (its stomach) and its hooves and it can reach the places of water and can eat the trees till its owner finds it?"  

جَاءَ رَجُلٌ إِلَى رَسُولِ اللَّهِ ﷺ فَسَأَلَهُ عَنِ اللُّقَطَةِ فَقَالَ اعْرِفْ عِفَاصَهَا وَوِكَاءَهَا ثُمَّ عَرِّفْهَا سَنَةً فَإِنْ جَاءَ صَاحِبُهَا وَإِلاَّ فَشَأْنَكَ بِهَا قَالَ فَضَالَّةُ الْغَنَمِ قَالَ هِيَ لَكَ أَوْ لأَخِيكَ أَوْ لِلذِّئْبِ قَالَ فَضَالَّةُ الإِبِلِ قَالَ مَالَكَ وَلَهَا مَعَهَا سِقَاؤُهَا وَحِذَاؤُهَا تَرِدُ الْمَاءَ وَتَأْكُلُ الشَّجَرَ حَتَّى يَلْقَاهَا رَبُّهَا  

While I as in the company of Salman bin Rabiʿa and Suhan, in one of the holy battles, I found a whip. One of them told me to drop it but I refused to do so and said that I would give it to its owner if I found him, otherwise I would utilize it. On our return we performed Hajj and on passing by Medina, I asked Ubai bin Kaʿb about it. He said, "I found a bag containing a hundred Dinars in the lifetime of the Prophet ﷺ and took it to the Prophet ﷺ who said to me, 'Make public announcement about it for one year.' So, I announced it for one year and went to the Prophet ﷺ who said, 'Announce it publicly for another year.' So, I announced it for another year. I went to him again and he said, "Announce for an other year." So I announced for still another year. I went to the Prophet ﷺ for the fourth time, and he said, 'Remember the amount of money, the description of its container and the string it is tied with, and if the owner comes, give it to him; otherwise, utilize it.' "  

وَجَدْتُ صُرَّةً عَلَى عَهْدِ النَّبِيِّ ﷺ فِيهَا مِائَةُ دِينَارٍ فَأَتَيْتُ بِهَا النَّبِيَّ ﷺ فَقَالَ عَرِّفْهَا حَوْلاً فَعَرَّفْتُهَا حَوْلاً ثُمَّ أَتَيْتُ فَقَالَ عَرِّفْهَا حَوْلاً فَعَرَّفْتُهَا حَوْلاً ثُمَّ أَتَيْتُهُ فَقَالَ عَرِّفْهَا حَوْلاً فَعَرَّفْتُهَا حَوْلاً ثُمَّ أَتَيْتُهُ الرَّابِعَةَ فَقَالَ اعْرِفْ عِدَّتَهَا وَوِكَاءَهَا وَوِعَاءَهَا فَإِنْ جَاءَ صَاحِبُهَا وَإِلاَّ اسْتَمْتِعْ بِهَا  

Messenger of Allah ﷺ said, "An animal should not be milked without the permission of its owner. Does any of you like that somebody comes to his store and breaks his container and takes away his food? The udders of the animals are the stores of their owners where their provision is kept, so nobody should milk the animals of somebody else, without the permission of its owner."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَحْلُبَنَّ أَحَدٌ مَاشِيَةَ امْرِئٍ بِغَيْرِ إِذْنِهِ أَيُحِبُّ أَحَدُكُمْ أَنْ تُؤْتَى مَشْرُبَتُهُ فَتُكْسَرَ خِزَانَتُهُ فَيُنْتَقَلَ طَعَامُهُ فَإِنَّمَا تَخْزُنُ لَهُمْ ضُرُوعُ مَوَاشِيهِمْ أَطْعِمَاتِهِمْ فَلاَ يَحْلُبَنَّ أَحَدٌ مَاشِيَةَ أَحَدٍ إِلاَّ بِإِذْنِهِ  

My ears heard and my eyes saw the Prophet ﷺ when he spoke, "Anybody who believes in Allah and the Last Day, should serve his neighbor generously, and anybody who believes in Allah and the Last Day should serve his guest generously by giving him his reward." It was asked. "What is his reward, O Messenger of Allah ﷺ?" He said, "(To be entertained generously) for a day and a night with high quality of food and the guest has the right to be entertained for three days (with ordinary food) and if he stays longer, what he will be provided with will be regarded as Sadaqa (a charitable gift). And anybody who believes in Allah and the Last Day should talk what is good or keep quiet (i.e. abstain from all kinds of dirty and evil talks).  

سَمِعَتْ أُذُنَاىَ وَأَبْصَرَتْ عَيْنَاىَ حِينَ تَكَلَّمَ النَّبِيُّ ﷺ فَقَالَ مَنْ كَانَ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ فَلْيُكْرِمْ جَارَهُ وَمَنْ كَانَ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ فَلْيُكْرِمْ ضَيْفَهُ جَائِزَتَهُ قَالَ وَمَا جَائِزَتُهُ يَا رَسُولَ اللَّهِ قَالَ يَوْمٌ وَلَيْلَةٌ وَالضِّيَافَةُ ثَلاَثَةُ أَيَّامٍ فَمَا كَانَ وَرَاءَ ذَلِكَ فَهْوَ صَدَقَةٌ عَلَيْهِ وَمَنْ كَانَ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ فَلْيَقُلْ خَيْرًا أَوْ لِيَصْمُتْ  

Messenger of Allah ﷺ said, Whoever believes in Allah and the Last Day, should serve his guest generously. The guest's reward is: To provide him with a superior type of food for a night and a day and a guest is to be entertained with food for three days, and whatever is offered beyond that, is regarded as something given in charity. And it is not lawful for a guest to stay with his host for such a long period so as to put him in a critical position." Narrated Malik: Similarly as above (156) adding, "Who believes in Allah and the Last Day should talk what is good or keep quiet." (i.e. abstain from dirty and evil talk, and should think before uttering).  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَنْ كَانَ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ فَلْيُكْرِمْ ضَيْفَهُ جَائِزَتُهُ يَوْمٌ وَلَيْلَةٌ وَالضِّيَافَةُ ثَلاَثَةُ أَيَّامٍ فَمَا بَعْدَ ذَلِكَ فَهْوَ صَدَقَةٌ وَلاَ يَحِلُّ لَهُ أَنْ يَثْوِيَ عِنْدَهُ حَتَّى يُحْرِجَهُ حَدَّثَنَا إِسْمَاعِيلُ قَالَ حَدَّثَنِي مَالِكٌ مِثْلَهُ وَزَادَ مَنْ كَانَ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ فَلْيَقُلْ خَيْرًا أَوْ لِيَصْمُتْ  

We said to the Prophet, "You send us out and it happens that we have to stay with people who do not entertain us. What do you think about it? He said to us, "If you stay with some people and they entertain you as they should for a guest, accept their hospitality, but if they don't, take the right of the guest from them."  

قُلْنَا لِلنَّبِيِّ ﷺ إِنَّكَ تَبْعَثُنَا فَنَنْزِلُ بِقَوْمٍ لاَ يَقْرُونَا فَمَا تَرَى فِيهِ فَقَالَ لَنَا إِنْ نَزَلْتُمْ بِقَوْمٍ فَأُمِرَ لَكُمْ بِمَا يَنْبَغِي لِلضَّيْفِ فَاقْبَلُوا فَإِنْ لَمْ يَفْعَلُوا فَخُذُوا مِنْهُمْ حَقَّ الضَّيْفِ