سنن ابن ماجه

It was narrated from Ibn ‘Abbas that the Messenger of Allah (ﷺ) said: “Whoever is given food by Allah, let him say: Allahumma barik lana fihi wa arzuqna khairan minhu (O Allah, bless it for us and provide us with something better than it). And whoever is given milk to drink by Allah, let him say: Allahumma barik lana fihi wa zidna minhu (O Allah, bless it for us and give us more of it). For I do not know of any food or drink that suffices, apart from milk.”