Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrated from the Messenger of Allah (peace and blessings be upon him), he (peace be upon him) said: "The best among your women is the one whose dowry is the easiest among you." Mujahid (may Allah have mercy on him) used to say: Even if it is one dirham, it is lawful.
Hadith Referenceمسند اسحاق بن راهويه / كتاب النكاح و الطلاق / 648