Sayyiduna Ali (may Allah be pleased with him) said: "The word of a Bedouin from Ashja' is not accepted against the Book of Allah."
It is reported from Abu al-Sha'tha' Jabir bin Zayd (may Allah have mercy on him) and Ata' bin Abi Rabah (may Allah have mercy on him) that the woman receives only the inheritance.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14424