The Sufficient (Vol 7) · Hadith 106 (#Ḥadīth #3)

3- مُحَمَّدُ بْنُ يَحْيَى عَمَّنْ ذَكَرَهُ عَنْ أَبِي الْحَسَنِ الرِّضَا فِي أُمِّ الْوَلَدِ إِذَا مَاتَ عَنْهَا مَوْلاهَا وَقَدْ أَوْصَى لَهَا قَالَ تُعْتَقُ فِي الثُّلُثِ وَلَهَا الْوَصِيَّةُ.

3. Muhammad ibn Yahya has narrated from those whom he has mentioned who have narrated the following: “About the case of the mother of a child, when her master dies who has made a will for her, abu al- Hassan, al-Rida’ , has said, ‘She becomes free in one-third and the will belongs to her.’”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).