Dua for the host — guest supplication
اللّهُـمَّ بارِكْ لَهُمْ فيما رَزَقْـتَهُم، وَاغْفِـرْ...
اللّهُـمَّ بارِكْ لَهُمْ فيما رَزَقْـتَهُم، وَاغْفِـرْ لَهُـمْ وَارْحَمْهُمْ
Allahumma barik lahum feema razaqtahum, waghfir lahum warhamhum
Translation
O Allah, bless for them that which You have provided them, forgive them and have mercy upon them.
When to recite
Said by a guest for the host upon completing a meal at their home.
Source / Reference
Muslim 3/1615