What to say if something happens to please you or to displease you

 218. When something happened that pleased him , the Prophet (SAW) used to say:

Alhamdu lillaahil-lathee bini'matihi tatimmus-saalihaat.

Praise is to Allah Who by His blessings all good things are perfected .

And if something happened that displeased him , he used to say :

Alhamdu lillaahi 'alaa kulli haal.

Praise is to Allah in all circumstances.

Reference: Ibn As-Sunni, 'Amalul-Yawm wal-Laylah, and Al-Hakim who graded it authentic 1/499. See also Al-Albani, Sahihul-Jami' As-Saghir 4/201.