I am a young man aged 20. I had an operation when I was little and for that reason I was not circumcised. After that I went to the hospital and the doctor told me that I had to do the operation first because of a physical defect in the same area, then I should be circumcised. Years have gone by and I have not done the first operation and so I have not yet been circumcised. I have reached the age of twenty and this is my situation, and I pray in the mosque. What is the ruling in this case?.


Praise be to Allaah.
 

Circumcision is obligatory for men according to the majority
of scholars, and it is one of the sunan al-fitrah (the actions
connected to the sound nature of man), as the Prophet (peace and
blessings of Allaah be upon him) said: “The actions of the fitrah are five:
circumcision, shaving the pubic hair, trimming the moustache, clipping the
nails and plucking the armpit hairs.” Narrated by al-Bukhaari, 5441; Muslim,
377. 

Al-Bukhaari (3107) and Muslim (4368) narrated that Abu
Hurayrah (may Allaah be pleased with him) said: The Messenger of Allaah
(peace and blessings of Allaah be upon him) said: “Ibraaheem (peace be upon
him) circumcised himself when he was eighty years old.” 

But that fuqaha’ have stated that if an adult fears that
circumcision may harm him, then it is waived in his case. Ibn Qudaamah (may
Allaah be pleased with him) said: “Section: With regard to circumcision, it
is obligatory for men and an honour for women, but is not obligatory for
them. This is the view of many of the scholars. Ahmad said: It is more
obligatory for a man, because if a man is not circumcised, then that skin is
covering the glans and it cannot be cleaned properly. And it is less
important for women.” 

Abu ‘Abd-Allaah (i.e., Imam Ahmad) said: Ibn ‘Abbaas was very
strict on this issue. It was narrated from him that there is no Hajj and no
prayer for one who is not circumcised. But al-Hasan granted a concession
with regard to that, and said: If a person becomes Muslim, it does not
matter if he is not circumcised. He said: Black and white people became
Muslim, and no one examined them, and they did not get circumcised. The
evidence that it is obligatory is that covering the ‘awrah is obligatory,
and if it were not for the fact that circumcision is obligatory it would not
be permissible to transgress the sanctity of the person being circumcised
and look at his ‘awrah in order to carry out this procedure. And this is one
of the symbols of the Muslims. So it is obligatory, as are all the other
symbols of Islam. If an adult man becomes a Muslim and he fears that being
circumcised will harm him, it is waived in his case, because ghusl and
wudoo’, etc are also waived if there is the fear that they will cause harm,
so it is more appropriate that circumcision be waived (in this case). If a
person is sure that he will not be harmed by it, then he has to do it.
Hanbal said: I asked Abu ‘Abd-Allaah about the dhimmi (Jew or Christian
living under Islamic rule) who becomes a Muslim: Do you think that he needs
to be circumcised? He said: It is essential. I said: Even if he or she is
old? He said: I like for him to be purified by that, because of the
hadeeth:  “Ibraaheem (peace be upon him) circumcised himself when he was
eighty years old.” And Allaah says (interpretation of the meaning): “it
is the religion of your father Ibraaheem (Abraham)” [al-Hajj 22:78]. 

From al-Mughni, 1/101 

It says in Fataawa al-Lajnah al-Daa’imah (5/113): 

Circumcision is one of
the Sunnahs of the Fitrah, for both males and females, but it is obligatory
for males and a Sunnah and an honour for women. 

With the advances in the field of medicine, circumcision has
become a safe procedure in most cases, so you should hasten to get
circumcised and fulfil this obligation, follow the example of the Prophets,
preserve your sound human nature (fitrah) and be on the safe side with
regard to worship. 

And Allaah knows best.