A man who developed a yearning to learn Hadees went to the great Imam al-Bukhari (May Allah (SWT) have mercy on him) and explained to him his intentions. Imam al-Bukhari thus advised:
“Son, before you set out to pursue any field, make sure you are well-grounded with its prerequisites and demands. And remember that a person cannot become a perfect scholar in the science of Hadees [muhaddis] until and unless he writes four things with four other things, which are indispensable as four things, which resemble four other things. (He must write these things) in four times, with four conditions, in four places, upon four things, from four types of people, and for four objectives. All of these four-angled things can only be achieved with four things coupled with another four things. Once all of these things have been achieved, four things will become insignificant for him and he will be tried with four other things. If he exercises patience in these four trials, Allah (SWT) will honour will with four things in this world and award him four things in the hereafter.”
He then proceeded to explain these four-angled things:
“The four things he has to write write are:
(1) the statements and commands of Allah’s Messenger Sall-Allahu alayhi wa sallam.
(2) the saying of the Companions RA and their relative ranks
(3) the sayings of the Followers RA and their ranks (i.e. who among them are reliable and who are not), and
(4) the conditions of all the narrators who narrate hadiths.
These (four pieces of information) must be written together with the following four things:
(1) the actual names of the narrators
(2) their appelations or titles (kuna)
(3) their places of residence, and
(4) their dates of birth and death (to determine whether the narrator actually met the people he has narrated from).
(These are indispensable to him) just (as four things are necessary with four other things:)
(1) as praises [tahmid] of Allah (SWT) (are necessary) with the khutba,
(2) as salutations [salawat], (are necessary) with mention of the name of Allah’s MessengerSall-Allahu alayhi wa sallam.
(3) as (the recitation of) bismillah (is necessary) with a sura (of the Qur’an), and
(4) as the takbir (is necessary) with the salat.
These resemble four other things (which are names of four categories of hadith)
(1) the musnadat [narrations traceable to the MessengerSall-Allahu alayhi wa sallam]
(2) the mursalat [narrations transmitted by a Follower from the MessengerSall-Allahu alayhi wa sallam directly without a Companion in between,
(3) the mawqufat [narrations from traceable only to a Companion],
(4) the maqtu’at [narrations traceable only to a Follower].
(These things must all be written ) in four times:
(1) in his childhood
(2) in his age of discernment (i.e. close to maturity),
(3) in his youth, and
(4) in his old age.
(In other words, he must continue acquiring hadiths at all times throughout every stage of his life. They must be written) under four conditions:
(1) while his is occupied,
(2) while he is free,
(3) in his poverty, and
(4) in his affluence.
(In other words, he must diligently pursue the knowledge of these things no matter what his circumstances maybe. This is done) at four places:
(1) in moutainous terrain,
(2) on the seas,
(3) in cities, and
(4) and in rural areas.
(In other words, he must endeavour to acquire the science from the right teacher, no matter where that teacher is located. He writes what he has acquired) Upon four things:
(1) upon stones,
(2) upon shells,
(3) upon skins, and
(4) and upon bones.
(In other words, even when he does not find paper he will continue recording it somewhere) until he finds the paper upon which to preserve. (He acquires it from four different types of people:)
(1) from his seniors,
(2) from his juniors,
(3) from his counterparts, and
(4) from the books of his father, provided he has firm conviction that these are his fathers books.
(In other words, he endeavours to acquire this science in everway possible without feeling ashamed to obtain it even from his juniors. He has four objectives for doing all these things:)
(1) to acquire (this science) solely for the pleasure of Allah (SWT),
(2) to practice upon the Hadiths which conform to the verse of the Holy Qur’an,
(3) to propogate (the science) to those who seek it, and
(4) to write it out so that it can be a source of guidance to those who will come after him.
Thereafter, the aforementioned four things cannot be acquired (unless he has first acquired) four other things part of human acquisition:
(1) the knowledge of how to read and write,
(2) lexicography and vocabulary,
(3) morphology, and
together with four other things that are not of human acquisition, but are bestowed by Allah (SWT):
(1) sound health,
(3) an ardent desire for learning, and
(4) a retentive memory.
Once all of the aforementioned four-angles things are attained by him, then four things will become insignificant before him:
(1) his family,
(2) his children,
(3) his wealth, and
(4) his native land.
He will then be afflicted with four things:
(1) his enemies will rejoice at his distress,
(2) his friends will reproach him,
(3) the ignorant will taunt him, and
(4) the scholars [Ulama] will be jealous of him.
Once he exercises patience in these calamities, Allah (SWT) will honour him with four things in this world:
(1) the honour of contentment [qana’a]
(2) conviction coupled with awe and dignity,
(3) the pleasure of sacred knowledge [ilm], and
(4) eternal life.
(On top of that,) Allah (SWT) will honour him with four things in the hereafter:
(1) the honour of intercession on behalf of whomever he pleases,
(2) the shade of the throne of Allah (SWT) on the day there will be no shade available except of the shade of His throne,
(3) the privilege to provide water to whomsoever he pleases from the pool of Muhammad SAW [al-Kawthar], and
(4) close proximity with the Prophets [Ambiya’] in the Highest of the High Places [a’la ‘illiyin].
So now, my son, I have told you whatever I have heard from teachers [masha’ikh]. Now you have the choice to either pursue this field or to abstain from it.””