Translation of the verse 9 from Surah Al-Waqi‘ah : Number of verses 96 - - page 534 - Part 27.
And those on the Left Hand (i.e. those who will be given their Record in their left hands), Who will be those on the Left Hand? (As a disgrace for them, because they will enter Hell).
And the companions of the left - what are the companions of the left?
(56:9) And the People on the Left: *6 and how miserable will be the People on the Left!
*6) The word mash 'amah in ashab al-mash'amah, in the original, is from shu'm which means misfortune, ill-luck and bad omen; in Arabic the left hand also is called shuma. The Arabs regarded shimal (the left hand) and shu'm (bad omen) as synonyms, the left hand being a symbol of weakness and indignity. If a bird flew left on the commencement of a journey, they would take it as a bad omen; if they made a person sit on their left, it meant they regarded him as a weak man. Therefore, ashab al-mash'amah implies ill-omened people, or those who would suffer disgrace and ignominy, and would be made to stand on the left side in the Court of Allah.
Source : Al-Waqi‘ah Verse 9: And the companions of the left - what are the companions of the left?