´Abu Hurairah narrated that:` When supplicating for the newlywed, the Prophet would say: (Barak Allahu laka wa baraka alaik, wa jama'a bainakuma fi khair.) "May Allah bless you and send blessings upon you, and bring goodness between you."
Related hadith on this topic
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
On such occasions of happiness, one should offer pure and Sunnah supplications as congratulations, which encompass all apparent and hidden meanings of affection, love, and increase.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 2130