Hadith.5649 - Al-Hasan ibn Ali ibn Al-Nuʿman narrated from Abdullah ibn Numayr from Al-Aʿmash from Salim ibn Abi Al-Jaʿd that Imam Ali ibn Abi Talib عليه السلام granted the entire inheritance to the grandmother.
The author of this book, may Allah سبحانه وتعالى have mercy on him, explained that Imam Ali ibn Abi Talib عليه السلام gave her the entire inheritance because the deceased had no other heir besides her.