Allah T'ala says in the Holy Quran:
قُل لاَّ يَسْتَوِي الْخَبِيثُ وَالطَّيِّبُ وَلَوْ أَعْجَبَكَ كَثْرَةُ الْخَبِيثِ فَاتَّقُواْ اللّهَ يَا أُوْلِي الأَلْبَابِ لَعَلَّكُمْ تُفْلِحُونَ
(5:100) (O Messenger!) Say to them: "The bad things and the good things are not equal, even though the abundance of the bad things might make you pleased with them. Men of understanding, beware of disobeying Allah; then maybe you will attain true success.'
Abdullah ibn Amr narrated:
"Allah's Messenger (s.a.a.w.) neither spoke in an insulting manner nor did he ever speak evil intentionally. He used to say, 'The most beloved to me among you is the one who has the best character and manners.'" (Narrated by Al-Bukhari)
AbuHurayrah narrated that the Prophet (s.a.a.w.) said:
"The most Perfect believer in respect of faith is he who is best of them in manners." (Narrated by Abu-Dawood)
Qatadah ibn Malik narrated that Zayd ibn Ilaqah related on the authority of his uncle, Qatadah ibn Malik, that the Prophet (s.a.a.w.) would supplicate:
"O Allah, I seek Your protection against undesirable manners, acts, and desires." (Transmitted by Al-Tirmithi.)
Anas ibn Malik narrated:
"I was walking with the messenger of Allah (s.a.a.w.) and he was wearing a mantle of Najran with a thick border. A Bedouin met him and pulled the mantle so violently that I saw this violent pulling had left marks from its border on the skin of the neck of the Messenger of Allah (s.a.a.w.). And he (the Bedouin) said: Muhammad!, command that I should be given out of the wealth of Allah which is at your disposal. The Messenger of Allah (s.a.a.w.) turned to him and smiled, and then he ordered for him a provision."
He also narrated:
"Eighty men from the men of Makkah descended upon the Messenger of Allah (s.a.a.w.) from the mountain of Al-Taneem, in [full] armor, with the intent of doing battle with him. He (Muhammad, s.a.a.w.) captured them peaceably and then did not kill them" (Narrated by Muslim)
A Poem on Prophet Muhammad (s.a.a.w.) by Allama Iqbal
He slept on a mat of rushes,
But the crown of Chosroes lay beneath the feet of his followers;
He chose the nightly solitude of Mount Hira,
And founded a nation, law and government;
He passed his nights with sleepless eyes,
That his Millet might sleep on Chosroes throne
In the hour of battle, iron was melted by the flash of his sword.
At prayer time, tears fell like drops of rain from his eyes.
In his prayer for Divine help, his Amen' was a sword,
Which extirpated the lineage of kings.
He inaugurated a new Order in the world,
He brought the empires old to an end:
In his sight the high and the low were one,
He sat with the slave at table one;
He burnt clear the distinctions of birth and clan.
His fire consumed all this trash and bran.
"Allah's Messenger (s.a.a.w.) used to patch his sandals, sew his garment and conduct himself at home as anyone of you does in his house. He was a human being, searching his garment for lice, milking his sheep, and doing his own chores." (Narrated by al-Tirmathi).
She also said:
"He would patch his garments and sole his sandals" She was once asked: "How was he with his family?", she responded: "He was in the service of his family until it was time for prayer, at which time he would go and pray."
Some of the Prophet’s Companions were given to see this light as even brighter than both the sun and moon, for when they walked with him they noticed that he cast no shadow on the ground.[10. al-Hakim al-Tirmidhi] Those who saw him in the full moon noticed that his blessed face was brighter than the moon,[11. Tirmidhi] and one of his Companions, the Lady Rubayyi‘, when asked to describe him, said, "My son, had you seen him, you would have seen the sun shining."[12. Tirmidhi]
The light of the Prophet shone at all levels, it filled the material, intermediary, and spiritual worlds, dispelled the darkness of ignorance and disbelief, and is destined to shine across the ages till the end of time.
That this light was physical as well as spiritual was borne witness to most amply by those who saw him. The Lady ‘A‘isha related how she saw the whole room fill with light one night, then it disappeared, while the Prophet continued to call upon his Lord. Then the room was filled with a more powerful light which disappeared after a while. She asked, "What is this light I saw?" he said, "Did you see it. O ‘A‘isha?" "Yes!" she replied. He said, "I asked my Lord to grant me my nation, so He gave me one third of them, so I praised and thanked Him. Then I asked him for the rest, so He gave me the second third, so I praised and thanked Him. Then I asked Him for the third third, so He gave it to me, so I praised and thanked Him." She said that had she wished to pick up mustard seeds from the floor by this light she could have.[13. Abu Nu'aym in Hilia.] In the famous description of Hind ibn Abi Hala, the Prophet’s stepson from the Lady Khadija, "He was dignified and awe inspiring, radiant like the radiance of the moon on the night it is full…"[14. Tirmidhi in Shama'il, Bayhaqi, Tabarani, and ibn Sa'd.] Ibn ‘Abbas described how he saw light shining from between his front teeth.[15. Tirmidhi in Shama'il, Darimi, Bayhaqi, Tabarani, and ibn Asakir.] Abu Qursafa, as a boy, went to swear allegiance to the Prophet, together with his mother and her sister. When they returned home they told him, " My son, we have never seen the like of this man, nor anyone better looking, cleaner dressed, or gentler in his speech; and we saw as if light came out of his mouth." [16. Tabarani.]