1- The hadith about making du’a when looking in the mirror is weak in all its isnads and all of them except the hadith of Anas are extremely weak. The view that it is hasan is not correct because all its isnads are flimsy. 2- The du’a has been soundly narrated from the Prophet (blessings and peace of Allah be upon him) in general terms, without any mention of looking in the mirror.

Whoever harms the Muslims or causes hardship to them, Allah will requite him for his deed in this world and the hereafter, or in one of them. He may repent, and whoever repents, Allah will turn to him in mercy.