H 16 - It is narrated from Ahmad bin Mehran from Muhammad bin Ali from Abi Ali Khazzaz from Dawood bin Sulaiman that he said: I said to Abu Ibrahim [Imam Musa Kadhim ]: I am afraid that something may happen and I will not be able to meet you. So tell me who the Imam is after you? Imam replied: My son, so-and-so, meaning Abul Hasan [Imam Ali Ridha].