Does masturbation at night in Ramadaan invalidate the fast?

Dear Brothers & Sisters,
As-Salaamu-Alaikum wa Rahmatullahi wa Barakatuh. (May Allah's Peace, Mercy and Blessings be upon all of you)
One of our brothers/sisters has asked this question:
As some ulama say that fellation is makruh and some say Haraam, if someone did it during one night of Ramadhan, does it nullifies his fast of the previous day?.
(There may be some grammatical and spelling errors in the above statement. The forum does not change anything from questions, comments and statements received from our readers for circulation in confidentiality.)
Check below answers in case you are looking for other related questions:
She prescribed a nebuliser to a patient and told him that it did not break the fast, then she found out that it does break the fast. What should she do?
Ruling on having an inoculation for hepatitis during the day in Ramadaan

Answer:
Praise be to Allaah.

The correct scholarly view is that masturbation is haraam. See question no. 329. 

If a person commits this haraam action at night in Ramadaan, that does not invalidate his fast, either on the day before or the day after. 

But the Muslim must strive to control himself and avoid doing this haraam action and others, especially during this blessed month.  

The Muslim has to make the most of this blessed month, for fasting is the best treatment for this haraam thing. Hence the Prophet (peace and blessings of Allaah be upon him) commanded young men who were unable to get married to fast. The Prophet (peace and blessings of Allaah be upon him) said: “O young men, whoever among you can afford it, let him get married, and whoever cannot afford it, then he should fast, for that will be a shield for him” – i.e., fasting will curb his desire. 

Whoever has been tested with this must repent to Allaah and regret what he has done, and resolve not to do it again. 

And Allaah knows best.

Whatever written of Truth and benefit is only due to Allah's Assistance and Guidance, and whatever of error is of me. Allah Alone Knows Best and He is the Only Source of Strength.
Your brother and well wisher in Islam

Related Answers:
She kissed a small child and is not sure whether she swallowed some of his saliva
He swallowed blood whilst he was praying
He died owing expiation for having intercourse during the day in Ramadan. What should his children do?
She prescribed a nebuliser to a patient and told him that it did not break the fast, then she found out that it does break the fast. What should she do?
Ruling on having an inoculation for hepatitis during the day in Ramadaan

Recommended answers for you:
Intercourse during Ramadaan
What is 'Aqeedah?
A list of brief Islamic sayings for sending to one’s friends
Sin and its Effects on the One Who Commits it
Is it permissible for a woman to remove the pubic hair of another woman?