Or like the saying of the Prophet...

Or like the saying of the Prophet: Gabriel never ceased enjoining me (to use) the toothbrush (siwak) until I feared it would chafe (my gums) or make me toothless.[^4] And he (Gabriel) never ceased enjoining me (to be good) to the neighbor until I thought he would make him my heir; and he never ceased enjoining me about the wife, to the extent that I thought it would be improper to divorce her; and he never ceased enjoining me about the slave, until I thought that he would fix a period within which he should be freed.

Or like the saying of Gabriel, when the battle of the Ditch ( Khandaq ) was over: O Muhammad, verily Allah, Exalted and Blessed is He above all, commands you not to say the 'asr (afternoon) prayer, except with the Banu Qurayza.[^5] Or like his saying (the Prophet's): My Lord commanded me to deal gently with the people, in the same manner as he asked me to perform the obligatory acts.

Or like his saying: Verily we prophets were ordered not to speak to people except in accordance with their intelligence. Or like his saying: Verily Gabriel brought a command to me from my Lord, which cooled my eyes and brought joy to my breast.

He (Gabriel) said: Verily Allah the Mighty and Glorious says that 'Ali is the Prince of Believers, and the leader of those having a whiteness on the forehead, wrists and ankles (from the effects of ablution and prayer).[^6] Or like his saying: Gabriel came to me and said: O Muhammad, verily Allah the Blessed and Exalted, has given Fatima in marriage to 'Ali in front of His Throne ('arsh), and made select angels bear witness to the marriage.

So marry her to him in this world and make the select amongst your people bear witness to it. There are many such (traditions), all of which are revelations, but do not form part of the Qur'an; if they did, they would surely have been included and not excluded from it. The Prince of Believers ('Ali), when he collected the Qur'an and brought it, said to them: This is the book of Allah, your Lord, as it was revealed to your Prophet; not a single word has been added to it or omitted from it.

They said: we have no need of it; we have with us what you possess. So he ('Ali) returned saying: “But they flung it behind their backs and bought therewith a little gain. Verily evil is that which they have gained thereby” (Qur'an 3:187) . Imam Ja'far as-Sadiq has said: The Qur'an is one; it was revealed by One to one single Prophet.