And be patient, [O Muhammad], and your patience is not but through Allah . And do not grieve over them and do not be in distress over what they conspire.
Meaning:-
Grieve: mourn, sorrow, sadden, upset, distress.
distress: extreme anxiety, sorrow, or pain.
Conspire: secretly plan something bad with someone, make secret plans jointly to commit an unlawful or harmful act.