اللَّهُمَّ بَارِكْ لَهُمْ فِيمَا رَزَقْتَهُمْ، وَاغْفِرْ لَهُمْ وَارْحَمْهُمْ
Allahumma barik lahum fima razaqtahum, waghfir lahum warhamhum
Allaahumma u barakee waxa aad ku arzuqday, oo u dambi dhaaf, una naxariiso.
Dua for the host when being a guest
Making dua for those who host you is from the sunnah.