The meaning of two strange things that must be expected

1. We were told by Muhammed bin Hasan bin Ahmad bin Waleed, may Allah be pleased with him, that he said: We were told by Muhammed bin Hasan al-Saffar, that he said: We were told by Ibrahim bin Hashim, from Hussain bin Yazid al-Nawfali, from Isma’eel bin Abi Ziyad al-Sukuni, from Ja’far bin Muhammed, from his father, from his fathers, from Ali, peace be upon them, that he said: The Messenger of Allah, Allah’s blessings be upon him and his Family, said