The Dowry. It is permissible for the dowry to be teaching Quran, a ring of iron or anything else, a small or large amount, And it is recommended for it to be Five Hundred Dirham Sahih Muslim 1425 b
Translation
This hadith has been narrated on the authority of Sahl b. Sa'd with a minor alteration of words, but the hadith transmitted through Za'idah (the words are that the Holy Prophet) said
Go, I have married her to you, and you teach her something of the Qur'an.