It is narrated from Jabir (may Allah be pleased with him) that the woman whose husband dies has no maintenance; rather, the inheritance suffices her.
This is the preserved (mahfuz) version: mawquf (a saying of the Companion).
Muhammad bin Abdullah al-Raqashi narrated it; he said: Harb bin Abi al-Aliyah narrated to us from Abu al-Zubayr, who narrates from Jabir that the Prophet (peace and blessings be upon him) said: "The pregnant woman whose husband dies has no maintenance."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب العدد / 15477