O Allah, bless my spouse and bless them in me. — Marriage
اللَّهُمَّ بَارِكْ فِي زَوْجِي وَبَارِكْ لَهُ فِيَّ
Transliteration: Allaahumma baarik fee zawjee wa baarik lahu fiyya
Translation: O Allah, bless my spouse and bless them in me.
Reference: General supplication