Muhammad in the Quran- Sayyid Ridha Al-Sadr

Prior to becoming Prophet, Muhammad's
nickname was "the Sincere the Trustworthy".
His own people knew him most and they
used to entrust him with their valuables and
precious items. The young man was well
known for his high morality. Muhammad (P)
was the man of a smile on his lips. He would
share whatever he had with the poor and needy.
In such an idolatrous community, the strong
were permanently above the weak and had always
been enjoying an unquestionable authority.
The manners of the tribe were to rule and prevail.
The entire society was subject to the ruling of the
powerful individual. Persecution and oppression
are dealt with on daily basis. In a society of that
type, no one would dare to speak about the
rights of bereft, let alone to demand such rights.
Muhammad grew up in the very same society
and was absolutely resolute not only to speak
and demand the rights of the poor and needy of
his own society however, he was consistent and
competent to alter the phase of mankind once and
for all.

Introduction to the translation by Sh. Mansour Leghaei