What does Qasim mean?
From the root q-s-m (ق-س-م, 'to divide, to apportion'), meaning 'one who divides or distributes', especially a distributor of provisions. Al-Qasim was a son of the Prophet (hence his kunya Abu al-Qasim). Also spelled Kasim, Qaasim.
What does Rigel mean?
The proper name of the bright blue star marking the foot of Orion, from Arabic 'rijl' ('foot', from 'Rijl Jauzah al-Yusra', 'the left foot of the giant'). The literal meaning is 'foot'; it is included as the proper name of a specific star.