http://web.umr.edu/~msaumr/reference/companions/English/khabbab.html
CONVERSION TO ISLAM
To Khabbab, the teachings of Muhammad were like a powerful light dispelling the darkness of ignorance. He went and listened to these teachings directly from him. Without any hesitation he stretched out his hand to the Prophet in allegiance and testified that “There is no god but Allah and Muhammad is His servant and His messenger.” He was among the first ten persons to accept Islam
PERSECUTION
On Siba’a ibn Abd al-Uzza and his people fell the task of punishing Khabbab even further. Regularly they began taking him to an open area in the city when the sun was at its zenith and the ground was scorching hot. They would take off his clothes and dress him in iron armour and lay him on the ground. In the intense heat his skin would be seared and his body would become inert. When it appeared that all strength had left him, they would come up and challenge him:
“What do you say about Muhammad?”
“He is the servant of God and His messenger. He has come with the religion of guidance and truth, to lead us from darkness into light.”
GENEROSITY
In the last phase of his life, Khabbab was blessed with wealth such as he had never before dreamed of. He was, however, well-known for his generosity. It is even said that he placed his dirhams and his dinars in a part of his house that was known to the poor and the needy. He did not secure this money in any way and those in need would come and take what they needed without seeking any permission or asking any questions.
In spite of this, he was always afraid of his accountability to God for the way he disposed of this wealth. A group of companions related that they visited Khabbab when he was sick and he said:
“In this place there are eighty thousand dirhams. By God, I have never secured it any way and I have not barred anyone in need from it.”
He wept and they asked why he was weeping. “I weep,” he said, “because my companions have passed away and they did not obtain any such reward in this world. I have lived on and have acquired this wealth and I fear that this will be the only reward for my deeds.”
Khabbab lived long enough to witness the great expansiOn of Islam under the four Khulafaa ar- Rashidun
. He once visited** Umar(R.A)** during his caliphate. Umar stood up he was in a meeting and greeted Khabbab with the words: “No one is more deserving than you to be in this assembly other than Bilal.”
**Ali ibn abi Talib (A.S), **stood at his grave and said:
“May God have mercy on Khabbab. He accepted Islam wholeheartedly. He performed hijrah willingly. He lived as a mujahid and God shall not withhold the reward of one who has done good.”