Umm Muhammad was the servant of Imam al-Ridha ('a). Her name is only mentioned by al-Mas'udi, which he transmits in his book, relying on his own sources and quoting Umm Muhammad.1

She relates traditions from Abu al-Hasan al-Thalith, and 'Ali Ibn Muhammad ('a). Hasan Ibn 'Ali al-Washsha' has related traditions from her.

Al-Mas’udi, quoting al-Hasan Ibn Muhammad Ibn Mu'alla from al-Hasan Ibn 'Ali al-Washsha', relates that Umm Muhammad, the freed slave of Imam al­ Ridha, said, "Abu al-Hasan2 came and he was frightened. He sat in the lap of Umm Abiha the daughter of Musa, his father's paternal aunt.

She asked him, 'What is the matter?'

He told her, 'By God, my father died this very moment.'

She replied, 'Do not say such a thing.'

He said, 'I swear to God that it is as I have told you.' We made a note of the time. His death was just as he had said."3

• 1. Ithbat al-Wasiyyah, p. 192.
• 2. Abu al-Hasan al-Thalith (the third) was an epithet used for Imam al-Hadi ('a), according to the information offered in the source book after the tradition.
• 3. Ithbat al-Wasiyyah, p. 192.