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 1427 a
Translation
Anas b. Malik reported that Allah's Apostle (ﷺ) saw the trace of yellowness on 'Abd al-Rahman b. 'Auf and said
What is this? Thereupon he said: Allah's Messenger, I have married a woman for a date-stone's weight of gold. He said: God bless you! Hold a wedding feast, even if only with a sheep.