Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
darimi:3141Abū Bakr b. Abū Shaybah > Ibn Idrīs > Hishām > al-Ḥasan And Ibn Sīrīn

[Machine] About Al-Hasan and Ibn Seerin, they said, "The pregnant woman is not inherited except with clear evidence."  

الدارمي:٣١٤١حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ عَنْ ابْنِ إِدْرِيسَ عَنْ هِشَامٍ

عَنْ الْحَسَنِ وَابْنِ سِيرِينَ قَالَا «لَا يُوَرَّثُ الْحَمِيلُ إِلَّا بِبَيِّنَةٍ»