Prophet Muhammad's kindness
الشيخ د. خالد بن عبدالرحمن الشايع
He (peace be upon him)was especially fond of children and used to get into the spirit of childish games in their company. He (peace be upon him)would have fun with the children who had come back from Abyssinia and tried to speak in Abyssinian with them. It was his practice to give lifts on his camel to children when he returned from journeys. [Al-Bukhari]
He (peace be upon him)would pick up children in his arms, play with them, and kiss them. A companion, recalling his childhood, said: "In my childhood I used to fell dates by throwing stones at palm trees. Somebody took me to the Prophet (peace be upon him) who advised me to pick up the dates lying on the ground but not to fell them with stones. He (peace be upon him)then patted me and blessed me." [Abu Daawood]
Towards the Poor
The Prophet (peace be upon him)enjoined upon Muslims to treat the poor kindly and to help them with alms, zakaat, and in other ways. He (peace be upon him)said: "He is not a perfect Muslim who eats his fill and lets his neighbor go hungry."
He (peace be upon him)asked: "Do you love your Creator? Then love your fellow beings first."
Monopoly is unlawful in Islam and he (peace be upon him)preached that: "It is difficult for a man laden with riches to climb the steep path that leads to bliss."
He (peace be upon him)did not prohibit or discourage the acquisition of wealth but insisted that it be lawfully acquired by honest means and that a portion of it would go to the poor. He (peace be upon him)advised his followers: "To give the laborer his wages before his perspiration dried up."
He (peace be upon him)did not encourage beggary either and stated that: "Allah is gracious to him who earns his living by his own labor, and that if a man begs to increase his property, Allah will diminish it and whoever has food for the day, it is prohibited for him to beg."
To his wife he (peace be upon him)said: "O 'Aa'ishah, love the poor and let them come to you and Allah will draw you near to Himself." [Al-Bukhari]
One or two instances of the Prophet's concern for the poor may be given here. A man from Madeenah, Ibaad Ibn Sharjil, was once starving. He entered an orchard and picked some fruit. The owner of the orchard gave him a sound beating and stripped off his clothes. The poor man appealed to the Prophet (peace be upon him)who remonstrated the owner thus: "This man was ignorant, you should have dispelled his ignorance; he was hungry, you should have fed him."
His clothes were restored and, in addition, some grain was given to him. [Abu Daawood]
A debtor, Jaabir Ibn Abdullaah, may Allah be pleased with him, was being harassed by his creditor as he could not clear his debt owing to the failure of his date crop. The Prophet (peace be upon him)went with Jaabir to the house of the creditor and pleaded with him to give Jaabir some more time but the creditor was not prepared to oblige. The Prophet (peace be upon him)then went to the oasis and having seen for himself that the crop was really poor, he again approached the creditor with no better result. He (peace be upon him)then rested for some time and approached the creditor for a third time but the latter was adamant. The Prophet (peace be upon him)went again to the orchard and asked Jaabir to pluck the dates. As Allah would have it, the collection not only sufficed to clear the dues but left something to spare. [Al-Bukhari]
His love for the poor was so deep that he (peace be upon him)used to pray: "O Allah, keep me poor in my life and at my death and raise me at resurrection among those who are poor." [An-Nasaa'ee]
Towards Animals
The Prophet (peace be upon him)not only preached to the people to show kindness to each other but also to all living souls. He (peace be upon him)forbade the practice of cutting tails and manes of horses, of branding animals at any soft spot, and of keeping horses saddled unnecessarily. [Muslim]
If he saw any animal over-loaded or ill-fed he (peace be upon him)would pull up the owner and say: "Fear Allah in your treatment of animals." [Abu Daawood]
A companion came to him (peace be upon him)with the young ones of a bird in his sheet and said that the mother bird had hovered over them all along. He was directed by the Prophet (peace be upon him)to replace her offspring in the same bush. [Abu Daawood]
During a journey, somebody picked up some birds eggs. The bird's painful note and fluttering attracted the attention of the Prophet (peace be upon him)who asked the man to replace the eggs. [Al-Bukhari]
As his army marched towards Makkah to conquer it, they passed a female dog with puppies. The Prophet (peace be upon him)not only gave orders that they should not be disturbed, but posted a man to see that this was done.
He (peace be upon him)stated: "Verily, there is heavenly reward for every act of kindness done to a living animal."
المصدر
http://www.islamweb.net/en/article/136183/prophet-muhammads-kindness
https://www.alukah.net/web/khalidshaya/0/107017/#ixzz60NBvwYOp