And from ‘Ali's descendants are my grandsons al­Hasan and al­Husayn...

And from ‘Ali's descendants are my grandsons al­Hasan and al­Husayn, who are the masters of the youths of Paradise, and from al­Husayn's descendants shall be nine: whoever obeys them obeys me, and whoever disobeys them also disobeys me; the ninth among them is their Qa'im and Mahdi." Al­Saduq, also in his Ikmal , traces another hadith through isnad to Imam al­Hasan al­‘Askari (as) who quotes his ancestors up to the Messenger of Allah, peace be upon him and his progeny, addressing Ibn Mas’ud thus: "O Ibn Mas’ud!

‘Ali ibn Abu Talib is your Imam after me; he is my successor over you." Quoting one hadith related by Salman, al­Saduq, also in his Ikmal , says that once Salman visited the Messenger of Allah, peace be upon him and his progeny, and found al­Husayn ibn ‘Ali (as) sitting on his lap, and the prophet was kissing him and saying: "You are a master, son of a master, an Imam and son of an Imam, brother of an Imam, father of Imams, and you are Allah's Argument, the son of His Argument ( Hujjah ), and father of nine Arguments from your loins, the ninth of them is their Qa'im." Al­Saduq, also in his Ikmal , quotes another hadith traced also to Salman who quotes a lengthy hadith by the Messenger of Allah in which he (pbuh) says: "O Fatima!

Have you not come to know that we are Ahl al­Bayt? Allah has made the Hereafter dearer to us than this life, and Allah the Exalted, Praised is His Name, cast a look at the inhabitants of the earth and chose me from among His creation; then he cast a second look and chose your husband and inspired me to marry you to him and take him as wali and vizier, and to make him my successor over my nation.

So, your father is the best of prophets, your husband is the best of wasis , and you are the first to join me." Al­Saduq, also in his Ikmal , quotes a lengthy hadith and mentions in it that a meeting of over two hundred men from the Muhajirun (Meccan Immigrants) and the Ansar (Medenite Supporters) were seeking knowledge and studying jurisprudence, and that each one of them started bragging about himself, while ‘Ali (as) remained silent.