When the son receives the certificate, the mother may feel excited and proud, and express her wishes and expectations for her son. Here are some things a mother might say:

1, "Congratulations, my son! You finally found someone to accompany you all your life, and I feel extremely gratified and proud of you. I hope you can be happy, support each other and create a better future. "

2. "This is a sign of your love and responsibility. I hope you can cherish each other, manage this relationship with your heart, and get better and better on the basis of mutual trust and understanding. "