Du'a for your host when breaking the fast

أَفْطَرَ عِنْدَكُمُ الصَّائِمُونَ، وَأَكَلَ طَعَامَكُمُ الْأَبْرَارُ، وَصَلَّتْ عَلَيْكُمُ الْمَلَائِكَةُ

Afṭara ʿindakumu aṣ-ṣāʾimūna, wa akala ṭaʿāmakumu al-abrāru, wa ṣallat ʿalaykumu al-malāʾikatu.

May the fasting break their fast with you, the righteous eat your food, and the angels pray for you.

Sunan Ibn Mājah 1747: Ṣaḥīḥ. The Prophet (peace be upon him) said this when he broke his fast at the home of Saʿd ibn Muʿādh. Also reported in Sunan Abī Dāwūd 3854 (Ṣaḥīḥ, Al-Albānī).