أحسن الله إليكم I Finished the Dawrah for Sheikh Muḥammad Hishām Aṭ-Ṭāhirī Hafidhahullah and passed with ijazah, Do I have your permission to teach these books and give Ijazah with my name as the teacher? بارك الله فيك

Ustadh AbdulAziz al-Haqqan

No, as ijazah normally is for narration may Allah reward you and i had many many ijazat for years before I started teaching, therefore your sheikh is the one who advises whether you are ready or not.