Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from al-Husayn ibn Sa'id from Ali ibn Asbat from al-Hakam ibn Miskin from certain persons of our people who has said the following.
"I asked abu 'Abdallah (a.s.), 'When does the succeeding one (Imam) come to know of what the one preceding him knew?" The Imam (a.s.) said, "At the last minute of the life of the Imam before
him."
H 724, Ch. 57, h 2
Muhammad has narrated from Muhammad ibn al-Husayn from Ali ibn Asbat from al-Hakam ibn Miskin from 'Ubayd ibn Zurarah and a group with him who has said the following. "We heard abu
'Abdallah (a.s.) say, 'The succeeding Imam comes to know of the knowledge of the preceding Imam in the last minute of the time left from his life.'"
H 725, Ch. 57, h 3
Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Ya'qub ibn Yazid from Ali ibn Asbat from certain persons of his people who has said that I asked abu 'Abdallah (a.s.) the
following. "When does the Imam come to know that he has become the Imam and position is transferred to him?" The Imam (a.s.) replied, "At the last minute of the life of the preceding Imam
(a.s.)."