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.
tabarani:17646ʿAbdullāh b. Aḥmad b. Ḥanbal > Muḥammad b. Ḥumayd > Ibrāhīm b. al-Mukhtār > Shuʿbah > Qatādah > al-Ḥasan > Maʿqil b. Yasār

[Machine] I saw the Prophet ﷺ give the grandmother one-sixth.  

الطبراني:١٧٦٤٦حَدَّثَنَا عَبْدُ اللهِ بْنُ أَحْمَدَ بْنِ حَنْبَلٍ ثنا مُحَمَّدُ بْنُ حُمَيْدٍ ثنا إِبْرَاهِيمُ بْنُ الْمُخْتَارِ عَنْ شُعْبَةَ عَنْ قَتَادَةَ عَنِ الْحَسَنِ عَنْ مَعْقِلِ بْنِ يَسَارٍ قَالَ

«رَأَيْتُ النَّبِيَّ ﷺ أَعْطَى الْجَدَّةَ سُدُسًا»