Al-Hasan bin ‘Alī al-Barbahārī said:

❝If you see a man making Du’ā for the uprightness of the ruler then know that he is a person of Sunnah, In shā’ Allāh.❞

[Sharh us-Sunnah, (No. 136) | Translated By Abū Ruqayyah ‘Abd us-Samad]