Assalamualaikum. Ahsanallahu ilaykum, our shaykh. May Allah love you. May I kindly ask: can a woman choose her mahr, is used mushaf of the Quran that her husband uses allwd? And if so, is it allowed for her to gift her husband her own mushaf she used to use? JazakAllahu khairan wa barakAllahu feek.

Ustadh AbdulAziz al-Haqqan
Sure, you can gift a Mus'haf, and it can be used in the Mahr (dowry) as well. There are fatwas in regards to this.