Sunan Ibn Majah
3329
Sahih+3

It was narrated from Abu Hurairah that when the first fruits (of the season) were brought, the Messenger of Allah (ﷺ) would say:“O Allah, bless us in our city and in our fruits, in our Mudd and in our Sa’,* blessing upon blessing.” Then he would give it to the smallest of the children present

SahihAl-Albani
SahihMuhammad Fouad Abd al-Baqi